Relating to or characterized by hand-like wings; having the structure or nature of a chiropteran or bat.
From 'Chiroptera' plus the suffix '-ous' (full of or characterized by). This adjective form emphasizes the distinctive hand-wing structure that defines the group.
While we usually just say 'bat-like,' 'chiropterous' technically means 'hand-winged'—using it makes you sound like a 19th-century naturalist describing creatures in their journal by candlelight!
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