- the action of a gene in the production of a protein or a phenotype.
- expressivity(def 2).
Origin of expression
Synonyms for expression
Examples from the Web for expressional
Historical Examples of expressional
Expressional activities are increasing in Negro colleges but with few exceptions these are inadequate in scope and number.
Yet it was these emotional, expressional women that Annabel Vyner naturally joined.I, Thou, and the Other One
Amelia Edith Huddleston Barr
This powerful drawing, made within the last two years, is to be cited as a characteristic specimen of expressional art.
She stated that, all the formative and expressional as well as nearly all the visionary power is my friends.William Sharp (Fiona Macleod)
Elizabeth A. Sharp
The expressional impulse is not satisfied by the resonance which an occasional public, however sympathetic, is able to afford.Introduction to the Science of Sociology
Robert E. Park
early 15c., "action of pressing out;" later (mid-15c.) "action of manifesting a feeling;" (late 15c.) "a putting into words," from Middle French expression (14c.), from Late Latin expressionem (nominative expressio), noun of action from past participle stem of exprimere (see express (v.)). Meaning "an action or creation that expresses feelings" is from 1620s. Of the face, from 1774. Occasionally the word also was used literally, for "the action of squeezing out."