expression

ex·pres·sion

noun \ik-ˈspresh-ən\

Definition of EXPRESSION

1

a : 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

: facial aspect or vocal intonation as indicative of feeling

3

: an act or product of pressing out