stoma
stoma definition
stoma (stō′mə)
noun pl. stomata -·mata (-mə tə) or stomas -·mas
- Bot. a microscopic opening in the epidermis of plants, surrounded by guard cells and serving for gaseous exchange
- Zool. a mouth or mouthlike opening; esp., an ingestive opening in lower invertebrates
Etymology: ModL < Gr, mouth < IE *stomen, mouth > Avestan staman-, (dog's) mouth
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