stoma

Pronunciation

• (UK) IPA ^(key): /ˈstəʊmə/
• (US) IPA ^(key): /ˈstoʊmə/

• Audio (US)

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Noun

Singular stoma

Plural stomas or stomata

1. (countable) (botany) A stoma is the tiny pores in the epidermis of a leaf or stem through which gases and water vapor pass.