DictionaryblanchTurning pale
verb

blanch

BLANCH/blæntʃ/

To turn pale from shock, fear, or illness.

The man blanches when he lifts a garden pot and discovers a snake.

A text-free two-moment sequence shows the same man lifting a garden pot, then blanching when he discovers a coiled snake beneath it.
Etymology

Old French blanchir meant “to whiten,” and English blanch first meant making something white or pale. The sense shifted to becoming pale, as a person's face may do from fear or shock.

More examples

  • She blanched when the doctor mentioned surgery.
  • He blanches with nausea and reaches for a chair.
  • Her face blanches at the news of the accident.

Forms

blanch · blanches · blanched · blanching

pallor noun — Unusual paleness of the skin or face.

Similar words

pale
More general; need not suggest sudden shock or fear.
whiten
Describes becoming white, not specifically losing facial color.