extremity

noun

1. 1

   an external body part that projects from the body

   it is important to keep the extremities warm

2. 2

   that part of a limb that is farthest from the torso

3. 3

   the outermost or farthest region or point

4. 4

   the greatest or utmost degree

   the extremity of despair

5. 5

   an extreme condition or state (especially of adversity or disease)