Expression
Ex*pres"sion
(ks*prsh"n), n. [L. expressio: cf. F. expression.] 1. The act of expressing; the act of forcing out by pressure; as, the expression of juices or oils; also, of extorting or eliciting; as, a forcible expression of truth.[1913 Webster]
2. The act of declaring or signifying; declaration; utterance; as, an
expression of the public will.
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With this tone of philosophy were mingled expressions of sympathy.Prescott.
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3. Lively or vivid representation of meaning, sentiment, or feeling, etc.; significant and impressive indication, whether by language, appearance, or gesture; that manner or style which gives life and suggestive force to ideas and sentiments; as, he reads with
expression; her performance on the piano has
expression.
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The imitators of Shakespeare, fixing their attention on his wonderful power of expression, have directed their imitation to this.M. Arnold.
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4. That which is expressed by a countenance, a posture, a work of art, etc.; look, as indicative of thought or feeling. "The expression of an eye."
Tennyson.
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It still wore the majesty of expression so conspicuous in his portraits by the inimitable pencil of Titian.Prescott.
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5. A form of words in which an idea or sentiment is conveyed; a mode of speech; a phrase; as, a common
expression; an odd
expression.
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6.
(Math.) The representation of any quantity or relation by appropriate characters or symbols, usually in a specific order.
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+PJC]
7.
(Genetics) the production of products by a gene that cause the appearance of the corresponding protein or phenotype; -- of a gene or of an organism with a specific gene; as, the
expression the beta-galactosidase positive phenotype,
[PJC]
8.
(Computers) a combination of characters linked by operators, occurring as part of the code of a computer program, which must be evaluated according to the rules of the computer language in order to produce a resulting value.
[PJC]
In most programming languages, (a + b) is an
expression indicating simple arithmetic addition, if the variables a and b are real numbers. Many other types of operation may be used in programs, and each set of symbols indicating an operation is an
expression in that program.
[PJC]
Past expression,
Beyond expression, beyond the power of description. "Beyond expression bright."
Milton.
[1913 Webster]
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Fri 22nd January 2021