Definition of pyloric caecum
1 : one of the tubular pouches opening into the alimentary canal in the pyloric region of most fishes
2 : one of the tubular pouches opening into the ventriculus of an insect
3 : one of the paired tubes in each ray of a starfish that have lateral glandular diverticula, that constitute the liver, and that communicate in pairs by a common duct with the pyloric sac
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 pyloric caecum? Please tell us where you read or heard it (including the quote, if possible).