Crossword clues for stoma
stoma
- Small plant orifice
- Plant's breathing pore
- Plant aperture
- Mouth, to a zoologist
- Ostiole
- Insect's spiracle
- Mouth: Comb. form
- Insect's orifice
- Leaf orifice
- Leaf part
- Tiny leaf opening
- Pore on a leaf
- Botanical breather
- Tiny body opening
- Small orifice
- Pores in a leaf
- Minute plant opening
- Leaf's breathing space?
- Hole in a leaf
- Breathing pore in plants
- A most diminutive opening
- Botanical opening
- Leaf's breathing orifice
- Leaf aperture
- Pore in a leaf
- Leaf pore
- Leaf opening
- Plant pore
- Zoological opening
- Tiny opening in a leaf
- Photosynthesis opening
- A mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ)
- A minute epidermal pore in a leaf or stem
- Mouthlike opening
- Plant opening
- Small aperture
- Small opening
- Aperture
- Plant's tiny opening
- Minute pore in a leaf
- Mouthlike part
The Collaborative International Dictionary
Stoma \Sto"ma\, n.; pl. Stomata. [NL., fr. Gr. ?, ?, a mouth.]
(Anat.) One of the minute apertures between the cells in many serous membranes.
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(Bot.)
The minute breathing pores of leaves or other organs opening into the intercellular spaces, and usually bordered by two contractile cells.
The line of dehiscence of the sporangium of a fern. It is usually marked by two transversely elongated cells. See Illust. of Sporangium.
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(Zo["o]l.) A stigma. See Stigma, n., 6
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Douglas Harper's Etymology Dictionary
"orifice, small opening in an animal body," 1680s, Modern Latin, from Greek stoma (genitive stomatos) "mouth; mouthpiece; talk, voice; mouth of a river; any outlet or inlet," from PIE root *stom-en-, denoting various body parts and orifices (cognates: Avestan staman- "mouth" (of a dog), Hittite shtamar "mouth," Middle Breton staffn "mouth, jawbone," Cornish stefenic "palate"). Surgical sense is attested from 1937.
Wiktionary
n. 1 (context botany English) One of the tiny pores in the epidermis of a leaf or stem through which gases and water vapor pass. 2 A small opening in a membrane; a surgically constructed opening, especially one in the abdominal wall that permits the passage of waste after a colostomy or ileostomy. 3 (context zoology English) A mouthlike opening, such as the oral cavity of a nematode. 4 An artificial anus.
WordNet
Wikipedia
In botany, a stoma (plural "stomata"), also called a stomate (plural "stomates") (from Greek στόμα, "mouth"), is a pore, found in the epidermis of leaves, stems, and other organs, that is used to control gas exchange.
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. The term is also used collectively to refer to an entire stomatal complex, both the pore itself and its accompanying guard cells. Air enters the plant through these openings, and contains carbon dioxide and oxygen, which are used in photosynthesis and respiration, respectively. Oxygen produced as a by-product of photosynthesis diffuses out to the atmosphere through these same openings. Also, water vapor is released into the atmosphere through these pores in a process called transpiration.
Stomata are present in the sporophyte generation of all land plant groups except liverworts. Dicotyledons usually have more stomata on the lower epidermis than the upper epidermis. Monocotyledons, on the other hand, usually have the same number of stomata on the two epidermes. In plants with floating leaves, stomata may be found only on the upper epidermis and submerged leaves may lack stomata entirely. Size varies across species, with end-to-end lengths ranging from 10 to 80 µm and width ranging from a few to 50 µm.
In anatomy, a natural stoma is any opening in the body, such as the mouth. Any hollow organ can be manipulated into an artificial stoma as necessary. This includes the esophagus, stomach, duodenum, ileum, colon, pleural cavity, ureters, urinary bladder, and kidney pelvis.
Stoma may refer to:
- Stoma (botany), a gas exchange pore in plants
- Stoma (medicine), an opening which connects a portion of the body cavity to the outside environment
Usage examples of "stoma".
In the epidermis of the apophysis functional stomata, similar to those of the higher plants, are present and, since cells containing chlorophyll are present below the superficial layers of the apophysis and capsule, the sporogonium is capable of independent assimilation.
The apophysis, which may be a more or less distinct region, usually bears stomata and is the main organ of assimilation.
A continual and increasing demand for refreshment existing during the day, the root spongioles are in active operation intercepting the moisture in its descent and absorbing it, while with the lessening of the temperature on the going down of the sun reaction begins, the stomata of the leaves exercise their functions, and by the absorption of gas react on the root films, which for the time relax their duty of arresting the passage of minute particles of water, with a very definite result on the nocturnal flow.
You see, sir,--and he went on with elytra and antennae and tarsi and metatarsi and tracheae and stomata and wingmuscles and leg-muscles and ganglions,--all plain enough, I do not doubt, to those accustomed to handling dor-bugs and squash-bugs and such undesirable objects of affection to all but naturalists.
From the morgue: December 13, 1984: With Steven Tyler, John Entwistle and Joan Jett in attendance, Jimmy Stoma marries a chorine turned professional wrestler in Las Vegas.
Known to millions of youthful fans as Jimmy Stoma, Stomarti disappeared on the afternoon of August 6 while exploring the sunken wreckage of a smuggler's airplane near Chub Cay, according to his wife, the singer Cleo Rio.
The most ambitious version of my plan is to save Emma, get Cleo busted, break open the Jimmy Stoma story and sail onto the front page of the Union-Register for the first time in 987 days.
November 11, 1987: For the second time in a week, Stoma is busted, this time for shoplifting a bundt cake and two chocolate eclairs from a downtown Phoenix bakery.
November n, 1987: For the second time in a week, Stoma is busted, this time for shoplifting a bundt cake and two chocolate eclairs from a downtown Phoenix bakery.
As front man Jimmy Stoma, Stomarti played rhythm guitar, harmonica and sang lead vocals.
My predicament, which I'd rather not explain to Tarkington, is that I'll need more than a string of baroque incidents to sell the Jimmy Stoma story to our managing editor.
I use the interlude to pluck from the galley stovetop the latest issues of Spin and Rolling Stone, both of which are open to obituaries of Jimmy Stoma.
Water vapor was now being drawn from the stomata of these leaves, to be replaced by water that moved slowly upwards through the vessels of the trees, vines, creepers, water brought into the living system by the millions of root hairs beneath the ground.
Mobile scions, which fed from special stomata rather than consuming their comrades, tended the silvas, cleaning up the environs, consuming and removing dead scions, preparing the soil and growing beds, and in general acting the role of expert gardeners.
In the car I twist up the volume on the Stomatose CD and, in memory of the late Jay Burns, play for Emma one of his collaborations with Jimmy Stoma.