顎 - jaw, chin, gill

jaw; chin

forktongue goby (Chaenogobius annularis); chestnut goby

agnathans (jawless fishes of superclass Agnatha)

to have a protruding chin; to have a turned-up chin

jawbone; mandible

prognathism

gnathostomiasis; larva migrans profundus

maxilliped; gnathopod

beard (esp. on the chin); goatee

maxilla; upper jawbone

Chaetognatha (phylum of arrow worms)

cleft chin