Dandruff is small flakes of dry skin shed from the scalp. Get dandruff, an anti-dandruff shampoo, flakes of dandruff.
It is usually caused by a yeast that lives on everybody's skin and irritates some scalps more than others, which is why the shampoos that work are antifungal rather than merely moisturising. It is common, harmless and quite unrelated to washing often enough.
1noundandruffSmall flakes of dry skin shed from the scalp.
“White flakes of dandruff covered the shoulders of his dark suit.”
dandruff is a skin condition.
First recorded in 1545. The first part is obscure; the second comes from a Middle English word for a scab or scurf.
Old Norse
hrufa
Middle English
hurf — scab
English, today
dandruff
The word is first attested in 1545; the first element is obscure, but compare dander. The second element derives from a Northumbrian or East Anglian Middle English hurf (“scab”), from Old Norse hrufa. Compare Dutch roof, lb Roff. Related with Proto-Germanic hreubaz, hreufaz (“rough, scabby”), source of Old English hrēofla (“leprosy, leper”). More at reef (etymology 3).
Etymology from Wiktionary, CC BY-SA