Webster's 1913 Dictionary
CERATOBRANCHIA
Cer `a *to *bran "chi *a, n. pl. Etym: [NL. , fr. Gr. n. pl. , gills.](Zoöl.)
Defn: A group of nudibranchiate Mollusca having on the back papilliform or branched organs serving as gills.
CERATOBRANCHIAL
CERATOBRANCHIAL Cer `a *to *bran "chi *al, a. (Anat. )
Defn: Pertaining to the bone, or cartilage, below the epibranchial in a branchial arch. -- n.
Defn: A ceratobranchial bone, or cartilage.
New American Oxford Dictionary
ceratobranchial
ceratobranchial |ˌsɛrətə (ʊ )ˈbraŋkɪəl, ˌkɛ -| ▶noun Zoology each of the paired ventral cartilaginous sections of the branchial arch in fishes. ORIGIN mid 19th cent.: from Greek keras, kerat- ‘horn ’ + branchial (see branchia ).
Oxford Dictionary
ceratobranchial
ceratobranchial |ˌsɛrətə (ʊ )ˈbraŋkɪəl, ˌkɛ -| ▶noun Zoology each of the paired ventral cartilaginous sections of the branchial arch in fishes. ORIGIN mid 19th cent.: from Greek keras, kerat- ‘horn ’ + branchial (see branchia ).