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A plural of stoma.


(ˈstoʊ mə)

n., pl. sto•ma•ta (ˈstoʊ mə tə, ˈstɒm ə-, stoʊˈmɑ tə) sto•mas.
1. a minute opening in leaves, stems, etc., through which gases are exchanged.
2. a primitive mouth or simple ingestive organ of an invertebrate animal.
3. a surgical opening in an organ constructed to permit passage of fluids or waste products to another organ or to the outside of the body.
[1675–85; < New Latin < Greek stóma mouth]
sto′mal, adj.
References in periodicals archive ?
Length and width measurements of stomata in the upper and lower surfaces of leaves were made and the mean and standard devition values of stomata were calculated.
A variety of characters like epidermal cells, subsidiary cells, guard cells, trichomes, macro-hairs, micro-hairs and stomata were used as a tool for the taxonomic grouping of different species.
Stomatal index calculation was performed according to the formula Stomatal index (SI) = NE/(EC + NE) * 100, where NE is the number of stomata and EC the number of epidermal cells.
Three stomata types including anisocytic, actinocytic and anomocytic have been found in the family.
The present studies on the plants growing in loco area indicate that auto exhaust pollution brought appreciable changes in the number of epidermal cells and stomata per unit area.
The microscopic characteristics analysed in upper and abaxial epidermis were: epidermal cells length and width (CLUE, CWUE, CLAE, CWAE); stomata cells length and width (SLUE, SWUE, SLAE, SWAE); stomata number per area unit (considering units of 19.
In addition, plants close their stomata and prevent further loss of interior moisture.
According to long-term measurements at many forest locations in the northern hemisphere, stomata on leaf surfaces react to more carbon dioxide, which is an example of the strategies of ecosystems to cope with changes.
Micromorphological structures of plant leaf surfaces, such as trichomes, epicuticular waxes and stomata, can be observed in detail through scanning electron microscopy (SEM), and often provide additional taxonomic information (Eglinton and Hamilton, 1967; Engel and Barthlott, 1988; Haron and Moore, 1996; Neinhuis and Barthlott, 1997; Stockey and Frevel, 1997).
2007), such as low regulation mechanism of water loss, mainly due to inefficient stomata functionality and the formation of epicuticular wax and reduced development of photosynthetic tissues (LAMHANEDI et al.
Stomata can be open or closed, and act like little windows into the Leaf.