Showing the complete front of a face in a picture, with both eyes, nose, and mouth fully visible.
Compound of 'full' (complete) and 'face' (front of the head), first used in art criticism and photography during the 19th century to distinguish portrait orientations.
Portrait artists actually developed specific vocabulary to describe how they painted faces—'full-face' became the technical term because it was hardest to do well, showing every asymmetry and detail of a person's features.
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