[ stoh-muh-tuh, stom-uh-, stoh-mah-tuh ]
/ ˈstoʊ mə tə, ˈstɒm ə-, stoʊˈmɑ tə /


a plural of stoma.



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Definition for stomata (2 of 2)

[ stoh-muh ]
/ ˈstoʊ mə /

noun, plural sto·ma·ta [stoh-muh-tuh, stom-uh-, stoh-mah-tuh] /ˈstoʊ mə tə, ˈstɒm ə-, stoʊˈmɑ tə/, sto·mas.

Also stomate. Botany. any of various small apertures, especially one of the minute orifices or slits in the epidermis of leaves, stems, etc., through which gases are exchanged.
Zoology. a mouth or ingestive opening, especially when in the form of a small or simple aperture.
Medicine/Medical. an artificial opening between two hollow organs or between one hollow organ and the outside of the body, constructed to permit the passage of body fluids or waste products.

Origin of stoma

1675–85; < New Latin < Greek stóma mouth


sto·mal, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for stomata

British Dictionary definitions for stomata (1 of 2)

/ (ˈstəʊmətə, ˈstɒm-, stəʊˈmɑːtə) /


the plural of stoma

British Dictionary definitions for stomata (2 of 2)

/ (ˈstəʊmə) /

noun plural stomata (ˈstəʊmətə, ˈstɒm-, stəʊˈmɑːtə)

botany an epidermal pore, present in large numbers in plant leaves, that controls the passage of gases into and out of a plant
zoology anatomy a mouth or mouthlike part
surgery an artificial opening made in a tubular organ, esp the colon or ileumSee colostomy, ileostomy

Word Origin for stoma

C17: via New Latin from Greek: mouth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for stomata

[ stōmə ]

n. pl. sto•mas

A minute opening or pore, as in the surface of a membrane.
A mouthlike opening, such as the oral cavity of a nematode.
A surgically constructed opening, especially one made in the abdominal wall to permit the passage of waste.

Other words from stoma

stomal adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for stomata

[ stōmə ]

Plural stomata (stōmə-tə)

Botany One of the tiny openings in the epidermis of a plant, through which gases and water vapor pass. Stomata permit the absorption of carbon dioxide necessary for photosynthesis from the air, as well as the removal of excess oxygen. Stomata occur on all living plant parts that have contact with the air; they are especially abundant on leaves. A single leaf may have many thousands of stomata. Each stoma is generally between 10 to 30 microns in length and is surrounded by a pair of crescent-shaped cells, called guard cells. The guard cells can change shape and close the stoma in order to prevent the loss of water vapor. See Note at transpiration.
Zoology A mouthlike opening, such as the oral cavity of a nematode.
Medicine A temporary or permanent opening in a body surface, especially the abdomen or throat, that is created by a surgical procedure, such as a colostomy or tracheostomy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.