Etymology: From Ancient Greek (term, sc=polytonic, , tr=stoma, , mouth, lang=grc).
- (botany) One of the tiny pores in the epidermis of a leaf or stem through which gases and water vapor pass.
- A small opening in a membrane; a surgically constructed opening, especially one in the abdominal wall that permits the passage of waste after a colostomy or ileostomy.
- (zoology) A mouthlike opening, such as the oral cavity of a nematode.
- An artificial anus.
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