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Definition of suppression
noun [mass noun]
the action of suppressing something such as an activity or publication:the heavy-handed suppression of political dissent Medicine stoppage or reduction of a discharge or secretion. Biology the absence or non-development of a part or organ that is normally present. Genetics the cancelling of the effect of one mutation by a second mutation. Psychology the restraint or repression of an idea, activity, or reaction by something more powerful. Psychoanalysis the conscious inhibition of unacceptable memories, impulses, or desires. prevention of electrical interference.