guard cell
noun Date: 1875 one of the two crescent-shaped epidermal cells that border and open and close a plant stoma

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • guard cell — guard′ cell n. bot either of a pair of crescent shaped cells that flank each plant pore and control its opening and closing by means of turgidity …   From formal English to slang

  • guard cell — n. either of the two bean shaped cells which surround and control a stoma, or air pore, in the epidermis of a plant …   English World dictionary

  • guard cell — noun : one of the two crescent shaped epidermal cells united at their ends whose changes in turgidity determine opening and closing of a stoma * * * Bot. either of two specialized epidermal cells that flank the pore of a stoma and usually cause… …   Useful english dictionary

  • guard cell — Plant cells occurring in pairs in the epidermis, flanking each stoma. Changes in turgor in the guard cells cause the stoma to open and close …   Dictionary of molecular biology

  • guard cell — Bot. either of two specialized epidermal cells that flank the pore of a stoma and usually cause it to open and close. [1870 75] * * * …   Universalium

  • guard cell — noun Botany each of a pair of curved cells that surround a stoma …   English new terms dictionary

  • guard cell — /ˈgad sɛl/ (say gahd sel) noun either of two specialised epidermal cells which flank the pore of a stoma and usually cause it to open and close …   Australian English dictionary

  • guard cell — Specialized epidermal cells found in pairs around a stoma. Their function is to control the opening and closing of the stoma through changes in turgor …   Glossary of Biotechnology

  • guard — v. & n. v. 1 tr. (often foll. by from, against) watch over and defend or protect from harm. 2 tr. keep watch by (a door etc.) so as to control entry or exit. 3 tr. supervise (prisoners etc.) and prevent from escaping. 4 tr. provide (machinery)… …   Useful english dictionary

  • Cell Test — Infobox Television episode Title = Cell Test Series = Prison Break Caption = Season = 1 Episode = 3 Airdate = September 5, 2005 Production = 1AKJ02 Writer = Michael Pavone Director = Brad Turner Season list = Infobox Prison Break season 1 episode …   Wikipedia

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