Definitions

1. verb

to cause or become white, especially in a patchy manner; to whiten or turn white

“The frost emblanched the grass overnight, giving it a frosty appearance.”

2. verb

to render white or colorless

“The pigment emblanched the surface, making it look dull and washed out.”

3. noun

a patch or streak of whiteness, especially on a surface that has been frostbitten

“The emblanch on the tree’s bark was a clear sign of the harsh winter.”