'Alca torda' definitions:

Definition of 'Alca torda'

From: WordNet
noun
Black-and-white northern Atlantic auk having a compressed sharp-edged bill [syn: razorbill, razor-billed auk, Alca torda]

Definition of 'Alca torda'

From: GCIDE
  • Razorbill \Ra"zor*bill`\ (-b[i^]l`), n. (Zool.) (a) A species of auk (Alca torda) common in the Arctic seas. See Auk, and Illust. in Appendix. (b) See Cutwater, 3. [1913 Webster]