'line of shadows' definitions:

Definition of 'line of shadows'

From: GCIDE
  • Quadrat \Quad"rat\, n. [F. quadrat, cadrat. See Quadrate.]
  • 1. (Print.) A block of type metal lower than the letters, -- used in spacing and in blank lines. [Abbrev. quad.] [1913 Webster]
  • 2. An old instrument used for taking altitudes; -- called also geometrical square, and line of shadows. [1913 Webster]