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English definition of “stoma”

stoma

noun [C]     /ˈstəʊ.mə/ US  /ˈstoʊ-/ (plural stomata) specialized
one of the many pores (= very small holes in the surface ) on a leaf or stem of a plant through which gases are able to pass in and outParts of plants
(Definition of stoma noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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