Dandruff (noun)

Small white or gray flakes of dead skin that form on the scalp, often accompanied by itching or redness.

Origin:

From the english word "dand" meaning "louse" and "ruff" meaning "scrap" or "flakes".

Examples:

1. He had dandruff on his dark shirt.
2. Dandruff is caused by dry skin or an overgrowth of yeast on the scalp.
3. Dandruff can be treated with medicated shampoos.
4. Dandruff can be a sign of an underlying medical condition.
5. Dandruff can also be caused by poor hygiene or a diet lacking in certain nutrients.