antagonism



antagonism defined in 1951 year

antagonism - antagonism;
antagonism - (1) Interference with, or inhibition of, growth of one kind of organism by another through the creation of unfavourable conditions, e.g. by exhaustion of food supply or by production of a specific antibiotic substance (e.g. penicillin). (2) Of drugs, hormones, etc., producing opposing effects (Compare with: Synergisrri). Includes ion antagonism, the prevention of effects of individual ions by other ions present. E.g. magnesium is an anaesthetic, calcium opposes this action. See also: Physiological saline. (3) Of muscles, producing opposite movements so that contraction of one must be accompanied by relaxation of the other (and reflexes usually assure this).

near antagonism in Knolik


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