'Raven's-duck' definitions:

Definition of 'Raven's-duck'

From: GCIDE
  • Raven's-duck \Ra"ven's-duck`\ (r[=a]"v'nz-d[u^]k`), n. [Cf. G. ravenstuch.] A fine quality of sailcloth. --Ham. Nav. Encyc. [1913 Webster]