Medical Dictionary

overexpression

noun over·ex·pres·sion \-rik-ˈspresh-ən\

Medical Definition of OVEREXPRESSION

:  excessive expression of a gene by producing too much of its effect or product <we now suspect that many, if not most, cancers arise through the overexpression…of key cellular regulatory genes—J. D. Watson et al>
over·ex·press \-rik-ˈspres\ transitive verb

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