(uncountable, sports) The sport of skiing in a zigzag course through gates. (Often used attributively)

(uncountable) Any similar activity on other vehicles, including canoes and water skis.

(countable, sports) A course used for the sport of slalom.

(countable, sports) A race or competition wherein participants each perform the sport of slalom.

(intransitive) To race in a slalom.

(intransitive) To move in a slalom-like manner.