blanched

anemic looking from illness or emotion; "a face turned ashen"; "the invalid's blanched cheeks"; "tried to speak with bloodless lips"; "a face livid with shock"; "lips...livid with the hue of death"- Mary W. Shelley; "lips white with terror"; "a face white with rage"

(especially of plants) developed without chlorophyll by being deprived of light; "etiolated celery"