stem

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♦ stem /st'em/ (stems stemming stemmed)
1 [VERB] V from n
If a condition or problem stems from something, it was caused originally by that thing.
Much of the instability stems from the economic effects of the war.
2 [VERB] V n
If you stem something, you stop it spreading, increasing, or continuing. (FORMAL)
Austria has sent three army battalions to its border with Hungary to stem the flow of illegal immigrants...
3 [N-COUNT]
The stem of a plant is the thin, upright part on which the flowers and leaves grow.
He stooped down, cut the stem for her with his knife and handed her the flower.
= stalk
4 [N-COUNT]
The stem of a wine glass is the long thin part which connects the bowl to the base.
5 [N-COUNT]
The stem of a pipe is the long thin part through which smoke is sucked.
6 [N-COUNT]
In grammar, the stem of a word is the main part of it, which does not change when the ending changes.stem cell (stem cells)
[N-COUNT]
A stem cell is a type of cell that can produce other cells which are able to develop into any kind of cell in the body.

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