Noun: gill slit gil slit
- One of a series of slit openings in the pharynxes of fishes and aquatic amphibians through which water passes
"Water flows over the fish's gills through its gill slits, allowing for oxygen exchange";
- branchial cleft, gill cleft
Derived forms: gill slits
Type of: anatomical structure, bodily structure, body structure, complex body part, structure
Encyclopedia: Gill slit