单词 | rhamphotheca |
释义 | rhamphotheca/ramfəˈθiːkə/(also ramphotheca) Ornithology noun The modified integument, usually horny but in some birds leathery, that covers a bird's jaws and forms the outer layer of the bill. OriginLate 19th century; earliest use found in James Graham Cooper (1830–1902). From scientific Latin rhamphotheca from ancient Greek ῥάμϕος beak + θήκη sheath. |
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