Definition Of stems
(of a boat) make headway against (the tide or current).
But he, like Canute, will not stem the spring tide
a long and thin supportive or main section of something.
the main stem of the wing feathers
a pipe used for smoking crack or opium.
originate in or be caused by.
many of the universities' problems stem from rapid expansion
remove the stems from (fruit or tobacco leaves).
They will love making thumbprints in the cookies but might have trouble sitting still for less glamorous tasks like stemming cherry tomatoes.