Added 10 October 2026 chirotherian adjective adjective ! Definition from Wiktionary (CC BY-SA). More about chirotherian at Wordnik → Where our words come from → Relating to Chirotherium fossils. Related Words: chirologicalchiropterophilicchirognomicchondrostianchondropterygianchilognathouschondroskeletalchondroditicchionophobouschondrocranialfossilologicalcephalochordate Back to today's word