Mid 19th century; earliest use found in Robert Mayne (1808–1868). From octo- + -dactylous, after scientific Latin octodactylus; compare ancient Greek ὀκτωδάκτυλος.
Definition of octodactylous in US English:
octodactylous
adjective
Zoology
Having eight digits.
Origin
Mid 19th century; earliest use found in Robert Mayne (1808–1868). From octo- + -dactylous, after scientific Latin octodactylus; compare ancient Greek ὀκτωδάκτυλος.