Definition of red body
: a mass of capillaries on the inner wall of the air bladder of various teleost fishes thought to control the diffusion and absorption of the gases contained in the air bladder
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up red body? Please tell us where you read or heard it (including the quote, if possible).