Found 2 items, similar to ceras.
English → English (WordNet) Definition: ceras ceras n : one of the often brightly colored and branching hornlike structures on the back of the nudibranch (and other related mollusks) that serve as gills
English → English (gcide) Definition: ceras ceras \ceras\ n. one of the often brightly colored and branching hornlike structures on the backs of nudibranchs and other related mollusks that serve as gills. [WordNet 1.5]