What does crosshair mean?

Definitions for crosshair
crossha·ir

This dictionary definitions page includes all the possible meanings, example usage and translations of the word crosshair.


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Wiktionary

  1. crosshairnoun

    Reticle.

Wikipedia

  1. crosshair

    A reticle, or reticule also known as a graticule, is a pattern of fine lines or markings built into the eyepiece of an optical device such as a telescopic sight, spotting scope, theodolite, optical microscope or the screen of an oscilloscope, to provide measurement references during visual inspections. Today, engraved lines or embedded fibers may be replaced by a digital image superimposed on a screen or eyepiece. Both terms may be used to describe any set of patterns used for aiding visual measurements and calibrations, but in modern use reticle is most commonly used for weapon sights, while graticule is more widely used for non-weapon measuring instruments such as oscilloscope display, astronomic telescopes, microscopes and slides, surveying instruments and other similar devices. There are many variations of reticle pattern; this article concerns itself mainly with the most rudimentary reticle: the crosshair. Crosshairs are typically represented as a pair of perpendicularly intersecting lines in the shape of a cross, "+", though many variations of additional features exist including dots, posts, concentric circles/horseshoes, chevrons, graduated markings, or a combination of above. Most commonly associated with telescopic sights for aiming firearms, crosshairs are also common in optical instruments used for astronomy and surveying, and are also popular in graphical user interfaces as a precision pointer. The reticle is said to have been invented by Robert Hooke, and dates to the 17th century. Another candidate as inventor is the amateur astronomer William Gascoigne, who predated Hooke.

Editors Contribution

  1. crosshair

    A reticle, or reticule (from Latin reticulum, meaning 'net'), also known as a graticule (from Latin craticula, meaning 'gridiron') or crosshair, is a pattern of fine lines or markings built into the eyepiece of a sighting device, such as a telescopic sight in a telescope, a microscope, or the screen of an oscilloscope, to provide measurement references during visual examination.

    Next in the government's crosshairs could be Comcast-NBC." Elizabeth Winkler, WSJ at AT&T Trial.


    Submitted by anonymous on March 10, 2019  

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Numerology

  1. Chaldean Numerology

    The numerical value of crosshair in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of crosshair in Pythagorean Numerology is: 2

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"crosshair." Definitions.net. STANDS4 LLC, 2024. Web. 29 Mar. 2024. <https://www.definitions.net/definition/crosshair>.

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