cleithrum (English, noun)
expansion: cleithrum (plural cleithra)
Senses:
topics: biology
ichthyology
natural-sciences
zoology
glosses: A large bone in fishes, which extends upward from the base of the pectoral fin and anchors to the cranium above the gills, forming the posterior edge of the gill chamber.
Forms:
form: cleithra
tags: plural