单词 | stoma |
释义 | stoma (once / 53002 pages) n WORD FAMILY stoma: stomata USAGE EXAMPLESShe agreed that poor stomata control is probably responsible for the build up of heavy metals in the albino plants. Washington Post(Oct 07, 2016) The stoma varies in size but is easily concealed under clothing. US News(Jul 13, 2016) And Jacob signalled to Max that he should talk to Barak, and Max signalled back that his father should—smoke through a stoma? The New Yorker(May 30, 2016) 1n a mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ) Hyper opening, orifice, porta an aperture or hole that opens into a bodily cavity 2n a minute epidermal pore in a leaf or stem through which gases and water vapor can pass Syn|Hypo|Hyper pore, stomate germ pore a pore in the outer wall of a spore or pollen grain through which the germ tube or pollen tube makes its exit on germination hydathode, water pore, water stomaa pore that exudes water on the surface or margin of a leaf of higher plants lenticelone of many raised pores on the stems of woody plants that allow the interchange of gas between the atmosphere and the interior tissue aperture a natural opening in something |
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