The Collaborative International Dictionary
Cheiropterygia
Cheiropterygium \Chei*rop`te*ryg"i*um\, n.; pl. Cheiropterygia. [NL., fr. Gr. chei`r hand + pte`ryx, pte`rygos wing, fin.] (Anat.) The typical pentadactyloid limb of the higher vertebrates.
Wiktionary
cheiropterygia
n. (plural of cheiropterygium English)