Head-up-display meaning

hedup
The display of instrument readings onto the windshield of an aircraft, automobile, etc., so as to afford the pilot or driver with a simultaneous view of the data and of the sky or road.
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A semitransparent graphical and textual display of information projected upon the field of view of a pilot of an aircraft. Abbreviation: HUD.
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(nautical) A type of radar or electronic chart display where the top of the display always represents the direction the vessel is heading.
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