hyobranchium
noun
hyo·bran·chi·um
ˌhīōˈbraŋkēəm
plural hyobranchia
-ēə
: a typically somewhat Y-shaped bone that serves to support the tongue and tongue muscles in a snake and is considered to result from fusion of the hyoid and remnants of the branchial arches
Word History
Etymology
New Latin, from hy- + -branchium (from Greek branchion gill)