| Name: | opercular flap |
|---|---|
| Synonyms: | gill cover, gill slit, opercular apparatus, opercular cover, operculum |
| Definition: | A large flap, covered by integument, supported by several flat bones, actuated by muscles, found on the side of the head covering the gill chambers. |
| Ontology: | Anatomy Ontology [ZFA:0000555] |
| Name: | decreased size |
|---|---|
| Synonyms: | hypoplasia, small, tiny, underdeveloped |
| Definition: | A size quality which is relatively low. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000587] |