guard cell

noun

A kind of specialized cell located in the lower leaf epidermis of plants. Pairs of guard cells surround tiny stomatal airway pores and regulate their opening and closing.

Meanings

nounguard cell (plural guard cells)

plural guard cells

  1. A kind of specialized cell located in the lower leaf epidermis of plants. Pairs of guard cells surround tiny stomatal airway pores and regulate their opening and closing.

    Synonyms: guardian cell

Synonyms & antonyms

nounA kind of specialized cell located in the lower leaf epidermis of plants. Pairs of guard cells surround tiny stomatal airway pores and regulate their opening and closing.

Cite this entry
APA

guard cell. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/guard%20cell

MLA

“guard cell.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/guard%20cell. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “guard cell,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/guard%20cell.

Source: guard cell on Wiktionary, CC BY-SA 4.0.