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Medical Dictionary

expression

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noun ex·pres·sion \ik-ˈspresh-ən\

Medical Definition of expression

  1. 1a:  something that manifests, represents, reflects, embodies, or symbolizes something else <the first clinical expression of a disease>b (1):  the detectable effect of a gene; also :  the sum of the processes (as transcription and translation) by which a gene is manifested in the phenotype <gene expression can be controlled by regulatory proteins that bind to specific sites on DNA—Mark Ptashne> (2):  expressivity

  2. 2:  facial aspect or vocal intonation as indicative of feeling

  3. 3:  an act or product of pressing out





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