Read the dictionary definition of blanched. All definitions for this word.
1. anemic looking from illness or emotion
1. a face turned ashen
2. the invalid's blanched cheeks
3. tried to speak with bloodless lips
4. a face livid with shock
5. lips...livid with the hue of death
6. lips white with terror
7. a face white with rage
2. (especially of plants) developed without chlorophyll by being deprived of light
1. etiolated celery