hemocoel
/ˈhiːməˌsiːl/
noun
- A body cavity in some animals, such as insects and mollusks, that is filled with blood or hemolymph and is part of the open circulatory system.
- In grasshoppers, the hemocoel allows blood to flow freely around the organs.
- Scientists studied the hemocoel of a caterpillar to understand how its immune system works.
- The hemocoel of a snail helps distribute nutrients throughout its body.