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Gerald, U.S. physician, 1931-1973. See: Moss tube.


Melvin L., 20th-century U.S. oral pathologist. See: Gorlin-Chaudhry-Moss syndrome.


1. Any low growing, delicate cryptogamous plant of the class Musci.
2. Popularly, any one of a number of lichens and seaweeds.
[A.S. meōs]
Farlex Partner Medical Dictionary © Farlex 2012


Any low-growing green plant of the class Musci.

Iceland moss

An edible lichen, Cetraria islandica. It is a demulcent that has been promoted as a treatment for bladder, kidney and lung diseases.

Irish moss

1. Carrageen.
2. Carrageenan.

peat moss

1. Any moss of the large genus Sphagnum whose decomposed and compacted remains form peat. The moss is absorptive and acidic and inhibits growth of bacteria and fungi. Synonym: sphagnum moss
2. The decomposed and compacted remains of the mosses, used as a soil conditioner and as a dressing for wounds. It has also been used by some primitive people as a form of external menstrual protection. Synonym: sphagnum moss

sphagnum moss

Peat moss.
Medical Dictionary, © 2009 Farlex and Partners


any bryophyte of the class Musci. Usually these are small plants (less than 5 cm high) attached to moist or wet substrates by rhizoids; this is the SPOROPHYTE generation. The sexual organs are borne on a GAMETOPHYTE generation and the ANTHERIDIA and ARCHEGONIA are on separate leaf rosettes. The male gametes are motile and after fertilization a diploid sporophyte is produced, within which haploid spores are developed, each spore giving rise to a protonema from which the new gametophyte develops.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Mosses don't care to be ornamental (though they are).
Use your artistic inclinations to create a patchwork of mounds and carpet mosses and contrasting shades of green.
The role of the mosses in the tundra has been compared with that of the trees in the forest.
Helped along by Annie Martin's "The Magical World of Moss Gardening" (Timber Press, 2015), I made a short list of mosses suited for the growing conditions my gardens provide.
The amount of nitrogen coming from the canopy depends on trees having mosses.
Soil-loving mosses can be found deep in the woods or growing on roadsides in some of the worst soil conditions imaginable, like red clay, gravel and even asphalt.
Occasionally, female mosses have sprouted the next generation with no males apparent within 10 centimeters or more.
This is surprising as mosses are neither palatable nor nutritious and there are few reports of mosses used for internal medical treatments.
The other nonflowering species selected for the DOE sequencing pipeline comes from an equally venerable lineage of the plant kingdom, the club mosses. Like the true mosses, they reproduce from spores instead of seeds, but the club mosses have what might be considered a vital improvement for life on land: decent plumbing.
In contrast, Gough Island, which is only 1,860 km away from Bouvet, shares just 16 percent of mosses, 17 percent of liverworts, and no lichens.
Because the cool weather of this region prevents decay, mosses and other plants have piled layer upon layer in the bog, recording information about the climate during the last 14,000 years, say Ray Kenny of New Mexico Highlands University in Las Vegas and co-workers at the University of Colorado at Boulder.
Klinger, who works at the university's Institute for Arctic and Alpine Research in Boulder, began his studies in arctic Alaska, where mosses are the dominant plants.