cross hairs

cross hairs
1. Also called cross wires. fine wires or fibers, strands of spider web, or the like, crossing in a focal plane of an optical instrument to center a target or object or to define a line of sight.
2. marks for aiding in the positioning of overlaying images for correct registration in printing. Cf. register (def. 11b).
[1880-85]

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Universalium. 2010.

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Look at other dictionaries:

  • Cross Hairs —   [engl.], Fadenkreuz …   Universal-Lexikon

  • cross hairs — cross′ hairs n. pl. opt fine wires or fibers crossing in a focal plane of an optical instrument to center an object or to define a line of sight …   From formal English to slang

  • cross hairs — n. crossed lines, as of fine hair or cobweb, mounted in the optical system of a telescopic gun sight, surveyor s level, etc., to assist in precise aiming or centering of the instrument …   English World dictionary

  • cross hairs — 1. Also called cross wires. fine wires or fibers, strands of spider web, or the like, crossing in a focal plane of an optical instrument to center a target or object or to define a line of sight. 2. marks for aiding in the positioning of… …   Useful english dictionary

  • cross hairs — plural noun a pair of fine wires crossing at right angles at the focus of an optical instrument or gunsight …   English new terms dictionary

  • in the cross hairs — in a position to be criticized or attacked. Her independence put her in the cross hairs of some local politicians. Usage notes: usually the situation results from holding opinions that are not popular or are too independent Related vocabulary:… …   New idioms dictionary

  • cross hair — noun either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration he had the target in his cross hairs • Syn: ↑cross wire • Hypernyms: ↑line • Part Holonyms:… …   Useful english dictionary

  • cross wire — noun either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration he had the target in his cross hairs • Syn: ↑cross hair • Hypernyms: ↑line • Part Holonyms:… …   Useful english dictionary

  • cross wires — Optics. See cross hairs (def. 1). [1865 70] * * * …   Universalium

  • cross wires — Optics. See cross hairs (def. 1). [1865 70] …   Useful english dictionary

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