Early 19th century; earliest use found in George Shaw (1751–1813), natural historian. From French adactyle or its etymon post-classical Latin adactylus from a- + ancient Greek δάκτυλος finger, toe.
Definition of adactyl in US English:
adactyl
adjective(ˌ)eɪˈdakt(ɪ)l
Zoology rare
= adactylous.
Origin
Early 19th century; earliest use found in George Shaw (1751–1813), natural historian. From French adactyle or its etymon post-classical Latin adactylus from a- + ancient Greek δάκτυλος finger, toe.