: to take the color out of
: such as
- Age had blanched his hair.
: to scald or parboil in water or steam in order to remove the skin from, whiten, or stop enzymatic action in (such as food for freezing)
- blanch the asparagus in salted boiling water
: to bleach by excluding light
- blanch the leaves of a plant
: to make ashen or pale
: to become white or pale (as from shock or fear)
—often used figuratively to describe a reaction of shock or dismay that makes someone unwilling or reluctant to proceed
- His face blanched with horror.
- Civilians also saw benefits to the system but blanched when talk then included references to $300-plus user fees.
- —Dan Fales
- … the managers of the companies blanched at the expenditures necessary to retool factories.
- —Charles C. Mann