Mid 17th century; earliest use found in Robert Lovell (?1630–1690), naturalist. From post-classical Latin aduncatus, past participle of aduncare to bend, curve from classical Latin ad- + uncus hooked, crooked, curved.
Definition of aduncate in US English:
aduncate
adjectiveəˈdʌŋkeɪt
Hooked, bent inward.
Origin
Mid 17th century; earliest use found in Robert Lovell (?1630–1690), naturalist. From post-classical Latin aduncatus, past participle of aduncare to bend, curve from classical Latin ad- + uncus hooked, crooked, curved.