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.
Origin
Late 19th century; earliest use found in James Graham Cooper (1830–1902). From scientific Latin rhamphotheca from ancient Greek ῥάμϕος beak + θήκη sheath.
- unassumingness
- unatoned
- unattached
- unattainable
- unattainableness
- unattainably
- unattempted
- unattended
- unattested
- unattractive
- unattractively
- unattractiveness
- unattributable
- unattributably
- unattributed
- unaudited
- un-Australian
- unauthentic
- unauthentically
- unauthenticated
- unauthorised
- unauthorized
- unavailability
- unavailable
- unavailableness