either of two white sea birds, Chionis alba or C. minor, of the colder parts of the Southern Hemisphere: so called from the horny sheath covering the base of the upper bill.
either of two pigeon-like shore birds, Chionis alba or C. minor, of antarctic and subantarctic regions, constituting the family Chionididae: order Charadriiformes. They have a white plumage and a horny sheath at the base of the bill
verb (used with object), sheathed, sheathing. 1. to put (a sword, dagger, etc.) into a sheath. 2. to plunge (a sword, dagger, etc.) in something as if in a sheath. 3. to enclose in or as if in a casing or covering. 4. to cover or provide with a protective layer or sheathing: to sheathe […]
noun, plural sheaths [sheeth z] /ʃiðz/ (Show IPA) 1. a case or covering for the blade of a sword, dagger, or the like. 2. any similar close-fitting covering or case. 3. a condom. 4. Biology. a closely enveloping part or structure, as in an animal or plant. 5. Botany. the leaf base when it forms […]
noun 1. a knife carried in a sheath. sheath knife noun 1. a knife carried in or protected by a sheath
- Sheath of eyeball
sheath of eyeball n. A condensation of connective tissue on the outer aspect of the sclera, from which it is separated by a narrow cleftlike space. Also called Tenon’s capsule.