| didactyl | <zoology> An animal having only two digits. Origin: Gr. = twice + finger, toe: cf. F. Didactyle. Source: Websters Dictionary (01 Mar 1998) |
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| didactylism | Congenital condition of having two fingers on a hand or two toes on a foot. Origin: G. Di-, two, + daktylos, finger or toe (05 Mar 2000) |
| didactylous | <zoology> Having only two digits; two-toed. Source: Websters Dictionary (01 Mar 1998) |