in Rhetoric, the elocution, diction, or choice of words in a discourse. See Language, Oratory, and Poetry.

in Music. See Composition.

in Painting, a natural and lively representation of the subject, or of the several objects intended to be shown.

The expression consists chiefly in representing the human body and all its parts, in the action suitable to it: in exhibiting in the face the several passions proper to the figures, and observing the motions they impress on the external parts. See Painting.

Theatrical. See Declamation, Article iv.

in Medicine, Chemistry, &c. the act of expression or extracting the juices or oils of plants, fruits, or other matters, by squeezing, wringing, or pressing them in a press. After having let the herbs infuse a due time, their juice must be drawn by expression in a linen cloth or by a press.