root, root word, base, stem, theme, radical -- ((linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem")
stalk, stem -- (a slender or elongated structure that supports a plant or fungus or a plant part or plant organ)
shank, stem -- (cylinder forming a long narrow part of something)
stem -- (the tube of a tobacco pipe)
bow, fore, prow, stem -- (front part of a vessel or aircraft; "he pointed the bow of the boat toward the finish line")
stem turn, stem -- (a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it)
Overview of verb stem
The verb stem has 4 senses
stem -- (grow out of, have roots in, originate in; "The increase in the national debt stems from the last war")
stem -- (cause to point inward; "stem your skis")
stem, stanch, staunch, halt -- (stop the flow of a liquid; "staunch the blood flow"; "stem the tide")
stem -- (remove the stem from; "for automatic natural language processing, the words must be stemmed")