The act of bearing or carrying something backward, or in surveying and navigation, a compass direction measured backward from a previous point.
From 'backbear' + the gerund suffix '-ing'. This technical term is especially used in surveying and navigation, where 'back bearing' refers to the reverse direction of a measured line, combining 'back' with the navigational sense of 'bearing' (direction).
In surveying, back bearings are essential for checking work—if your forward and back bearings don't match when reversed, something went wrong, making this term crucial to the geometry that built our cities and maps.
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