r

• rthe 18th letter of the Roman alphabet
• R and Ba combination of blues and jazz that was developed in the United States by Black musicians; an important precursor of rock 'n' roll
• R-2street names for flunitrazepan
• R. B. CattellAmerican psychologist (born in England) who developed a broad theory of human behavior based on multivariate research (1905-1998)
• R. Buckminster FullerUnited States architect who invented the geodesic dome (1895-1983)
• R. J. MitchellEnglish aeronautical engineer (1895-1937)
• R.C.of or relating to or supporting Romanism
• R.V.a motorized wheeled vehicle used for camping or other recreational activities
• raA roe; a deer. [Obs.] Chaucer.
• ra-A prefix, from the Latin re and ad combined, coming to us through the French and Italian. See Re-, and Ad-.
• raashThe electric catfish. [Written also raasch.]
• rabA rod or stick used by masons in mixing hair with mortar.
• rabatA polishing material made of potter's clay that has failed in baking. (a) A clerical linen collar. (b) A kind of clerical scarf fitted to a collar; as, a black silk rabat.
• rabateTo recover to the fist, as a hawk. [Obs.]
• rabatineA collar or cape. [Obs.] Sir W. Scott.
• rabatoa wired or starched collar of intricate lace; worn in 17th century
• rabbateTo abate or diminish. [Obs.] --n. Abatement. [Obs.]
• rabbeta rectangular groove made to hold two pieces together
• rabbet jointa joint formed by fitting together two rabbeted boards
• rabbet planea woodworking plane designed to cut rabbets
• rabbia Hebrew title of respect for a Jewish scholar or teacher
• Rabbi Moses Ben MaimonSpanish philosopher considered the greatest Jewish scholar of the Middle Ages who codified Jewish law in the Talmud (1135-1204)
• rabbinSame as Rabbi.
• rabbinatethe office or function of a rabbi
• rabbinicof or relating to rabbis or their teachings
• rabbinicalof or relating to rabbis or their teachings
• rabbinicallyIn a rabbinical manner; after the manner of the rabbins.
• rabbinismA rabbinic expression or phraseology; a peculiarity of the language of the rabbins.
• rabbinistOne among the Jews who adhered to the Talmud and the traditions of the rabbins, in opposition to the Karaites, who rejected the traditions.
• rabbiniteSame as Rabbinist.
• rabbitany of various burrowing animals of the family Leporidae having long ears and short tails; some domesticated and raised for pets or food
• rabbit bandicootbandicoot with leathery ears like a rabbit
• rabbit brushpleasantly aromatic shrub having erect slender flexible hairy branches and dense clusters of small yellow flowers covering vast areas of western alkali plains and affording a retreat for jackrabbits; source of a yellow dye used by the Navajo
• rabbit burrowa hole in the ground as a nest made by wild rabbits
• rabbit bushpleasantly aromatic shrub having erect slender flexible hairy branches and dense clusters of small yellow flowers covering vast areas of western alkali plains and affording a retreat for jackrabbits; source of a yellow dye used by the Navajo
• rabbit earsthe long ears of a rabbit
• rabbit fevera highly infectious disease of rodents (especially rabbits and squirrels) and sometimes transmitted to humans by ticks or flies or by handling infected animals
• rabbit foodan uncooked vegetable
• rabbit holea hole in the ground as a nest made by wild rabbits
• rabbit hutcha hutch for rabbits
• rabbit ontalk in a noisy, excited, or declamatory manner
• rabbit puncha short chopping blow to the back of the neck
• rabbit testpregnancy test that involves injecting some of the woman's urine into an unmated female rabbit and later examining the ovaries of the rabbit; presence of corpora lutea indicates that the woman is pregnant
• rabbit warrenan overcrowded residential area
• rabbit-eared bandicootbandicoot with leathery ears like a rabbit
• rabbit-eye blueberryshrub of southeastern United States grown commercially especially for canning industry
• rabbit-sizedhaving the approximate size of a rabbit
• rabbit-weedlow-growing sticky subshrub of southwestern United States having narrow linear leaves on many slender branches and hundreds of tiny yellow flower heads
• rabbit's-foot ferntropical American fern with brown scaly rhizomes cultivated for its large deeply lobed deep bluish-green fronds; sometimes placed in genus Polypodium
• rabbiteyeshrub of southeastern United States grown commercially especially for canning industry
• rabbiteye blueberryshrub of southeastern United States grown commercially especially for canning industry
• rabbitfishlarge European chimaera
• rabbitingThe hunting of rabbits. T. Hughes.
• rabbitryA place where rabbits are kept; especially, a collection of hutches for tame rabbits.
• rabbitweedlow-growing sticky subshrub of southwestern United States having narrow linear leaves on many slender branches and hundreds of tiny yellow flower heads
• rabbitwoodshrub of southeastern United States parasitic on roots of hemlocks having sparse spikes of greenish flowers and pulpy drupes
• rabblea disorderly crowd of people
• rabble-rousera political leader who seeks support by appealing to popular passions and prejudices
• rabble-rousingarousing to action or rebellion
• rabble-routA tumultuous crowd; a rabble; a noisy throng.
• rabblementA tumultuous crowd of low people; a rabble. "Rude rablement." Spenser. And still, as he refused it, the rabblement hooted. Shak.
• rabblerA scraping tool for smoothing metal.
• rabdoidalSee Sagittal. [Written also rhabdoidal.]
• rabdologyThe method or art of performing arithmetical operations by means of Napier's bones. See Napier's bones. [Written also rhabdology.]
• rabdomancyDivination by means of rods or wands. [Written also rhabdomancy.] Sir T. Browne.
• Rabelaisauthor of satirical attacks on medieval scholasticism (1494-1553)
• Rabelaisianof or relating to or characteristic of Francois Rabelais or his works
• Rabi Ithe third month of the Islamic calendar
• Rabi IIthe fourth month of the Islamic calendar
• rabidmarked by excessive enthusiasm for and intense devotion to a cause or idea
• rabidityunrestrained excitement or enthusiasm
• rabidlyIn a rabid manner; with extreme violence.
• rabidnessunrestrained excitement or enthusiasm
• rabiesan acute viral disease of the nervous system of warm-blooded animals (usually transmitted by the bite of a rabid animal); rabies is fatal if the virus reaches the brain
• Rabindranath TagoreIndian writer and philosopher whose poetry (based on traditional Hindu themes) pioneered the use of colloquial Bengali (1861-1941)
• rabinetA kind of small ordnance formerly in use. [Written also rabanet.] Ainsworth.
• rabiousFierce. [Obs.] Daniel.
• rabotA rubber of hard wood used in smoothing marble to be polished. Knight.
• racaA term of reproach used by the Jews of our Savior's time, meaning "worthless." Whosoever shall say to his brother, Raca, shall be in danger of the council. Matt. v. 22.
• racahoutA preparation from acorns used by the Arabs as a substitute for chocolate, and also as a beverage for invalids.
• raccoonan omnivorous nocturnal mammal native to North America and Central America
• raccoon dogsmall wild dog of eastern Asia having facial markings like those of a raccoon
• raccoon foxraccoon-like omnivorous mammal of Mexico and the southwestern United States having a long bushy tail with black and white rings
• racea canal for a current of water
• race cara fast car that competes in races
• race driversomeone who drives racing cars at high speeds
• race horsea horse bred for racing
• race meetinga regular occasion on which a number of horse races are held on the same track
• race murdersystematic killing of a racial or cultural group
• race problema social and political problem caused by conflict between races occupying the same or adjacent regions
• race riota riot caused by hatred for one another of members of different races in the same community
• race runnervery swift lizard of eastern and central United States
• race suicideThe voluntary failure of the members of a race or people to have a number of children sufficient to keep the birth rate equal to the death rate.
• raceabouta small sloop having the keep of a knockabout but with finer lines and carrying more sail
• racecarda program for a race meeting; lists the races and the names of the horses
• racecoursea course over which races are run
• racehorsea horse bred for racing
• racemateA salt of racemic acid.
• racemationA cluster or bunch, as of grapes. Sir T. Browne.
• racemeusually elongate cluster of flowers along the main stem in which the flowers at the base open first
• racemedArranged in a raceme, or in racemes.
• racemicPertaining to, or designating, an acid found in many kinds of grapes. It is also obtained from tartaric acid, with which it is isomeric, and from sugar, gum, etc., by oxidation. It is a sour white crystalline substance, consisting of a combination of dextrorotatory and levorotatory tartaric acids. Gregory.
• racemic acidthe optically inactive form of tartaric acid that is often found in grape juice
• racemiferousBearing racemes, as the currant.
• racemiformHaving the form of a raceme. Gray.
• racemosehaving stalked flowers along an elongated stem that continue to open in succession from below as the stem continues to grow
• racemousSee Racemose.
• racemuleA little raceme.
• racemuloseGrowing in very small racemes.
• racerslender fast-moving North American snakes
• racerunnervery swift lizard of eastern and central United States
• racetracka course over which races are run
• racetrack toutsomeone who offers advice about betting on horses (either to influence the odds or in the hope of sharing some of the winnings)
• racewaya course over which races are run
• rachA dog that pursued his prey by scent, as distinguished from the greyhound.[Obs.]
• racheA dog that pursued his prey by scent, as distinguished from the greyhound.[Obs.]
• Rachel(Old Testament) the second wife of Jacob and mother of Joseph and Benjamin
• Rachel CarsonUnited States biologist remembered for her opposition to the use of pesticides that were hazardous to wildlife (1907-1964)
• Rachel Louise CarsonUnited States biologist remembered for her opposition to the use of pesticides that were hazardous to wildlife (1907-1964)
• rachetmechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
• rachet upmove by degrees in one direction only
• rachialgiaA painful affection of the spine; especially, Pott's disease; also, formerly, lead colic.
• rachidianOf or pertaining to the rachis; spinal; vertebral. Same as Rhachidian.
• rachillaSame as Rhachilla.
• rachiodontSame as Rhachiodont.
• rachisthe series of vertebrae forming the axis of the skeleton and protecting the spinal cord
• rachischisisa not uncommon congenital defect in which a vertebra is malformed; unless several vertebrae are affected or there is myelomeningocele there are few symptoms; can be diagnosed by amniocentesis
• rachiticaffected with, suffering from, or characteristic of rickets
• rachitischildhood disease caused by deficiency of vitamin D and sunlight associated with impaired metabolism of calcium and phosphorus
• rachitomeA dissecting instrument for opening the spinal canal. [Written also rachiotome.]
• Rachmaninoffcomposer and piano virtuoso born in Russia (1873-1943)
• Rachmaninovcomposer and piano virtuoso born in Russia (1873-1943)
• Rachycentridaefamily of pelagic fishes containing solely the cobia
• Rachycentrongenus and family are coextensive and comprise only the cobia
• Rachycentron canadumlarge dark-striped tropical food and game fish related to remoras; found worldwide in coastal to open waters
• racialof or characteristic of race or races or arising from differences among groups
• racial discriminationdiscriminatory or abusive behavior towards members of another race
• racial exterminationsystematic killing of a racial or cultural group
• racial immunitynatural immunity shared by all members of a particular race
• racial profilinga form of racism consisting of the (alleged) policy of policemen who stop and search vehicles driven by persons belonging to particular racial groups
• racial segregationsegregation by race
• racialismdiscriminatory or abusive behavior towards members of another race
• racialista person with a prejudiced belief that one race is superior to others
• raciallywith respect to race
• racilyin a racy manner
• Racinea city in southeastern Wisconsin on Lake Michigan to the south of Milwaukee
• racinessbehavior or language bordering on indelicacy
• racingthe sport of engaging in contests of speed
• racing boata boat propelled by oarsmen and designed for racing
• racing cara fast car that competes in races
• racing circuita racetrack for automobile races
• racing giga light narrow racing boat for two or more oarsmen
• racing shella very light narrow racing boat
• racing skatean ice skate with a long blade; worn for racing
• racing skiffa shell for a single oarsman
• racing startthe start of a race
• racing yachtan expensive vessel propelled by sail or power and used for cruising or racing
• racismdiscriminatory or abusive behavior towards members of another race
• racistdiscriminatory especially on the basis of race or religion
• racka rapid gait of a horse in which each foot strikes the ground separately
• rack and piniona wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa)
• rack of lamba roast of the rib section of lamb
• rack railwayrailway for steep mountains; a cogwheel on the locomotive engages cogs on a center rail to provide traction
• rack rentan extortionate rent
• rack upsupply a rack with feed for (horses or other animals)
• rack-rentA rent of the full annual value of the tenement, or near it; an excessive or unreasonably high rent. Blackstone. To subject to rack-rent, as a farm or tenant.
• rack-renterOne who is subjected to playing rack-rent.
• rackabonesA very lean animal, esp. a horse. [Colloq. U. S.]
• rackarockA Sprengel explosive consisting of potassium chlorate and mono- nitrobenzene.
• rackeran attendant who puts pool or billiard balls into a rack
• racketan illegal enterprise (such as extortion or fraud or drug peddling or prostitution) carried on for profit
• racket clubclub for players of racket sports
• racket-tailAny one of several species of humming birds of the genus Steganura, having two of the tail feathers very long and racket- shaped.
• racket-tailedHaving long and spatulate, or racket-shaped, tail feathers.
• racketeersomeone who commits crimes for profit (especially one who obtains money by fraud or extortion)
• Racketeer Influenced and Corrupt Organizations Actlaw intended to eradicate organized crime by establishing strong sanctions and forfeiture provisions
• racketeeringengaging in a racket
• racketerOne who makes, or engages in, a racket.
• racketinessthe auditory effect characterized by loud and constant noise
• rackettAn old wind instrument of the double bassoon kind, having ventages but not keys.
• racketyuncontrollably noisy
• rackingcausing great physical or mental suffering
• racktailAn arm attached to a swinging notched arc or rack, to let off the striking mechanism of a repeating clock.
• rackworkAny mechanism having a rack, as a rack and pinion.
• racleSee Rakel. [Obs.] Chaucer.
• raclenessSee Rakelness. [Obs.] Chaucer.
• racona device that, on receiving radar signals, transmits coded signals in response to help navigators determine their position
• raconteura person skilled in telling anecdotes
• racoonan omnivorous nocturnal mammal native to North America and Central America
• racoondaThe coypu.
• racovianOne of a sect of Socinians or Unitarians in Poland.
• racqueta sports implement (usually consisting of a handle and an oval frame with a tightly interlaced network of strings) used to strike a ball (or shuttlecock) in various games
• racquetballa game played on a handball court with short-handled rackets
• racydesigned or suitable for competing in a race
• radthe unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
• radarmeasuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
• radar beacona device that, on receiving radar signals, transmits coded signals in response to help navigators determine their position
• radar domea housing for a radar antenna; transparent to radio waves
• radar echoan electronic signal that has been reflected back to the radar antenna; contains information about the location and distance of the reflecting object
• radar firegunfire aimed a target that is being tracked by radar