|Origin:||stemma. stem from 1900-2000 From STEM1|
stem2 past tense and past participle stemmed, present participle stemming [transitive]
to stop something from happening, spreading, or developing
stem the tide/flow/flood of something
The measures are meant to stem the tide of illegal immigration.
stem the growth/rise/decline etc
an attempt to stem the decline in profits
to stop the flow of a liquid:
A tight bandage should stem the bleeding.
stem from somethingphrasal verb
His headaches stemmed from vision problems.