the ridge along the tip of the lower mandible of a bird's bill at the junction of the two joined halves, esp. prominent in gulls
Derived forms
gonydealgonydial (ɡouˈnɪdiəl)
adjective
Word origin
[1830–40; ‹ NL, prob. erroneously for Gk génys jaw]This word is first recorded in the period 1830–40. Other words that entered Englishat around the same time include: baby talk, format, isometric, orientation, walkover