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An organism living in a state of commensalism.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



an organism that lives with an organism of a different species (permanently or temporarily); the commensal benefits from the association and does not injure the other organism. This association is called commensalism.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Among those strategies, it is worth mentioning the escape mechanism (Wasson & Lyon, 2005) and the commensally interaction between post-planktonic stages and gastropod Crucibulum spinosum (Sowerby, 1824), reducing the risk of desiccation at low tides and minimizing the pressure by predation during high tides (Campos-Gonzales & Macias-Chavez, 1987).
Mus are generally considered both territorial and colonial when living commensally with humans.
The parasitic interactions between phorids and ants have thus been relatively well studied (Feener & Brown 1997; Brown 1999), but less is known about the evolution of their association and the behavior of phorids living commensally within ant nests, especially concerning nonparasitic interactions between these two groups (Holldobler & Wilson 1990).
However, when living commensally with humans (i.e., in their dwellings with abundant food), they will reproduce throughout the year.
This fish lives free and commensally with infaunal invertebrates (MacGinitie and MacGinitie 1949).
In Theravada Buddhism and Buddhism Transformed Gombrich and Obeyesekere enable us to see that "spirit religion" and Gotama Buddha's recipe for individual salvation function commensally in a single organic relationship.
It may well be that the natural history of foreign organisms is first to cause pathology, then to be a nonfatal parasite, and then to live commensally and perhaps even interdependently.