dandruff

noun

1. a seborrheic scurf that forms on the scalp and comes off in small scales.

noun

1. loose scales of dry dead skin shed from the scalpAlso called (now rarely): dandriff

n.

1540s, first element obscure, second element is Northumbrian or East Anglian dialectal huff, hurf “scab,” from Old Norse hrufa, from Proto-Germanic *hreufaz, source of Old English hreofla “leper.”

n.

1. A scaly scurf formed on and shed from the scalp.