• Webster's Revised Unabridged Dictionary
    • a Monodactylous (Zoöl) Having but one finger or claw.
    • ***
Century Dictionary and Cyclopedia
    • monodactylous Having but one finger or toe; unidigitate.
    • monodactylous In Crustacea, subchelate: applied to the subcheliform limbs of crustaceans and arachnidans, in which there is no opposable finger to convert the terminal hook into a pincer-like claw or chela proper.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Monodactylous mon-ō-dak′ti-lus having only one toe or finger.
    • ***


Webster's Revised Unabridged Dictionary
Gr. monoda`ktylos; mo`nos single + da`ktylos finger: cf. F. monodactyle,


In literature:

The volume in his hands was Darwin's famous monograph on the monodactyl.
"In Search of the Unknown" by Robert W. Chambers
Monodactyle: with a single movable claw which closes on the tip of the other leg structures as in some parasitica.
"Explanation of Terms Used in Entomology" by John. B. Smith