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noun cross·hair \-ˌher\

Simple Definition of crosshair

  • : a very thin wire or thread that is seen when you look into a microscope, telescope, etc., and that is used for precisely viewing or aiming at something

Source: Merriam-Webster's Learner's Dictionary

Full Definition of crosshair

  1. :  a fine wire or thread in the focus of the eyepiece of an optical instrument used as a reference line in the field or for marking the instrumental axis —used figuratively to describe someone or something being targeted as if through an aiming device having crosshairs <… in the crosshairs this political season — J. H. Alter>

Circa 1884

First Known Use of crosshair

circa 1884

Seen and Heard

What made you want to look up crosshair? Please tell us where you read or heard it (including the quote, if possible).


having a blissful appearance

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