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Drug slang Marijuana, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


any plant that competes for resources with a plant of importance to man and which is therefore regarded as a nuisance. Weeds usually have a high VIABILITY and can use up disproportionate amounts of water, sunlight and nutrients. Where the weed is of a different plant type from the crop plant (e.g. the weed might be a DICOTYLEDON, such as ragwort, the crop a MONOCOTYLEDON such as wheat) selective HERBICIDES are available which are effective against only broad-leaved plants.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Patient discussion about weed

Q. is smoking weed bad for me? what can it do to me if it so?

A. all illegal drugs are bad,weed can cause memory loss,low sex drive,dependency,etc.it also causes family problems,and its ILLEGAL.

More discussions about weed
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References in periodicals archive ?
The result was described as "an untended plot with tall grass and weedlike plants, in marked contrast" to the carefully manicured lawns in the area, and complemented by a porch displaying a collection of "worn-out mismatched upholstered chairs".
Frau is the largest of Strauss's operas, and its proliferating but often superfluous action has always reminded me of George Orwell's comment that the profusion of minor characters in Dickens's work testifies to his "weedlike' imagination.
Efforts to counteract the effects of air pollution resulted in a selection of trees that are no longer considered suitable-even including the weedlike, smelly Ailanthus.