† oxydactyladj. and n. [ < oxy-comb. form1 + -dactylcomb. form, after scientific Latin Oxydactyla (A. Günther 1858, in Proc. Zool. Soc.26 341)] ZoologyObsoleterare(a) adj. (of a frog or toad) belonging to the former group Oxydactyla (a subdivision of Günther's Opisthoglossa), characterized by tapering or cylindrical toes without discs on the ends (opposed to platydactyln. and adj. at platy-comb. form);(b) n. a frog or toad of the former group Oxydactyla.