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English definition of “stem”

stem

noun [C] uk   /stem/ us  

stem noun [C] (CENTRAL PART)

a central part of something from which other parts can develop or grow, or which forms a support the stick-like central part of a plant that grows above the ground and from which leaves and flowers grow, or a smaller thin part that grows from the central part and supports the leaves and flowers: flower stems the vertical part of a glass or similar container which supports the part into which you put liquid: Champagne glasses usually have long stems.

stem noun [C] (WORD)

the part of a word that is left after you take off the ending: From the stem 'sav-' you get 'saves', 'saved', 'saving' and 'saver'.

stem noun [C] (WATCH)

US the small part on the side of a watch that you turn to move the hands (= parts that point to the numbers), or to make the watch operate

stem noun [C] (SHIP)

the main supporting structure at the front of a ship

stem

verb [T] uk   /stem/ (-mm-) us  
to stop something unwanted from spreading or increasing: These measures are designed to stem the rise of violent crime. We must take action to stem the tide of resignations. to stop the flow of a liquid such as blood: She tied a handkerchief around the wound to stem the flow of blood.
Phrasal verbs
(Definition of stem from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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