Nearby Words
guard cell
Motorola Official Site www.motorola.com/Businessready Devices Offer Superior Security & Control for Businesses. Learn More!
Intruder Security Systems www.bayalarm.com/AlarmSecurity Protect Your Home with Bay Alarm Free Security Review & Quote Today!
guard cells www.steelguardsafety.com/ Protect Robotic Cells & Machinery With Guard Cells 800.347.8368.
Ads
guard cell
noun Botany.
either of two specialized epidermal cells that flank the pore of a stoma and usually cause it to open and close.
Origin:
1870–75
1870–75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
|
Link To guard cell
00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
Guard cell
is always a great word to know.
So is archegonia. Does it mean:
| female reproductive organ which produces eggs in bryophytes, ferns and most gymnosperms |
| form of a diploid plant in the alternation of generations that produces asexual spores |
Collins
World English Dictionary
| guard cell | |
| —n | |
| botany one of a pair of crescent-shaped cells that surround a pore (stoma) in the epidermis. Changes in the turgidity of the cells cause the opening and closing of the stoma | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
guard cell  (gärd) Pronunciation Key
One of the paired cells in the epidermis of a plant that control the opening and closing of a stoma of a leaf. When swollen with water, guard cells pull apart from each other, opening the stoma to allow the escape of water vapor and the exchange of gases. When drier, guard cells become more flaccid and move closer together, allowing the plant to conserve water. Unlike the other cells in the epidermis, guard cells have chloroplasts and conduct photosynthesis. See more at stoma. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Word Dynamo Rating For Guard cell
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
