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cross hair

cross hair

5.5
Fine crossing lines in a sight or microscope used to aim
  • noun
  • /krɔs hɛr/
  • Specialized
translation icon : retículo
  • Using the cross hairs in the scope made it easier to focus on the distant object.

Examples

  • The marksman aligned the target with the cross hairs before taking the shot.

  • I got him in the cross hairs.

  • She adjusted the cross hairs of the telescope to get a clear view of the stars.

Synonyms

crosshair
vscross hair
11 4.1

A small set of lines on a sight or screen that shows the exact point to aim at

is limited to lines in the sighting plane of an optical instrument
crosshairs
vscross hair
4.4

Thin lines in a scope or camera view that show where you aim

refers specifically to lines in the sighting plane of optical instruments
cross wire
vscross hair
  • Specialized
7.7

Thin crossed lines in devices like a telescope or microscope that help you aim

is located in the sighting plane rather than the focus plane

Surface Forms

cross hair singular
cross hairs plural

Morphology

cross + hair

The meaning is directly derivable from 'cross' (intersecting lines) + 'hair' (a very thin filament), i.e. very thin intersecting lines used for aiming. The metaphorical use of 'hair' to mean a fine line is common and the compound follows a transparent descriptive composition that a B1 learner who knows both words can readily interpret.

Etymology

Cross hair comes from old sights that used very thin hairs or lines that cross each other to make a small mark to aim at. That's why a cross hair is the fine lines in a scope or microscope used to 'aim' or 'measure' exactly.