noun, Navigation.
a vertical pin set in an azimuth instrument or at the center of a compass card, indicating by the direction of its shadow the azimuth of the sun.


Read Also:

  • Shadow-play

    noun 1. a show in which shadows of puppets, flat figures, or live actors are projected onto a lighted screen. noun 1. a theatrical entertainment using shadows thrown by puppets or actors onto a lighted screen

  • Shadow price

    noun 1. (economics) the calculated price of a good or service for which no market price exists

  • Shadow ram

    operating system A memory area in PC-AT compatibles used to store frequently accessed ROM code to speed up operation. (1995-01-16)

  • Shadow-roll

    noun 1. sheepskin that is placed just below the eyes of a pacing horse in order to prevent it from seeing moving shadows cast by its body.

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