swim bladder
noun
- 1
an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
Synonyms
Also useful for “swim bladder”:Crossword— Multi-word entries show up in clues
an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
Also useful for “swim bladder”:Crossword— Multi-word entries show up in clues