Hypertext Webster Gateway: "Quadrat"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.]
2. An old instrument used for taking altitudes; -- called
also {geometrical square}, and {line of shadows}.
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