Home › Words › R › rhamphothecarhamphothecarhamphotheca means A thin horny sheath of keratin on the outer surface of a bird's beak.EtymologyFrom Ancient Greek ῥάμφος (rhámphos, “beak”) + theca.nounA thin horny sheath of keratin on the outer surface of a bird's beakDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.gnathotheca 67% match — The horny covering of the lower part of a bird's beak. vs rhamphotheca →rhyncholite 53% match — A fossil cephalopod beak. vs rhamphotheca →lamellirostral 52% match — Having a lamellate bill. vs rhamphotheca →cornoid 52% match — Composed of corneum vs rhamphotheca →rostroventral 51% match — Near the front of the beak or of any beak-like projection vs rhamphotheca →culminicorn 51% match — A horny piece on a bird's beak that envelopes the culmen in some bird species, such as mollymawks. vs rhamphotheca →beaklike 50% match — Resembling a beak. vs rhamphotheca →platyrostral 50% match — Having a flat, wide beak vs rhamphotheca →