stem2

verb (stems, stemming, stemmed)

• 1 [with object] stop or restrict (the flow of something):a nurse did her best to stem the bleeding
• stop the spread or development of (something undesirable):an attempt to stem the rising tide of unemployment

• 2 [no object] Skiing slide the tail of one ski or both skis outwards in order to turn or slow down: I side-slipped at first, grew tired of it, and stemmed for a while