CONTRACTION
contraction
(noun) the act of decreasing (something) in size or volume or quantity or scope
contraction, muscular contraction, muscle contraction
(noun) (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
contraction
(noun) a word formed from two or more words by omitting or combining some sounds; “‘won’t’ is a contraction of ‘will not’”; “‘o’clock’ is a contraction of ‘of the clock’”
compression, condensation, contraction
(noun) the process or result of becoming smaller or pressed together; “the contraction of a gas on cooling”
Source: WordNet® 3.1
Etymology
Noun
contraction (countable and uncountable, plural contractions)
A reversible reduction in size.
(economics) A period of economic decline or negative growth.
(biology) A shortening of a muscle when it is used.
(medicine) A strong and often painful shortening of the uterine muscles prior to or during childbirth.
(linguistics) A process whereby one or more sounds of a free morpheme (a word) are lost or reduced, such that it becomes a bound morpheme (a clitic) that attaches phonologically to an adjacent word.
(English orthography) A word with omitted letters replaced by an apostrophe, usually resulting from the above process.
A shorthand symbol indicating an omission for the purpose of brevity.
(medicine) The process of contracting a disease.
(phonetics) Syncope, the loss of sounds from within a word.
The acquisition of something, generally negative.
(medicine) A distinct stage of wound healing, wherein the wound edges are gradually pulled together.
Antonyms
• expansion
• dilatation
Source: Wiktionary
Con*trac"tion, n. Etym: [L. contractio: cf. F. contraction.]
1. The act or process of contracting, shortening, or shrinking; the
state of being contracted; as, contraction of the heart, of the pupil
of the eye, or of a tendion; the contraction produced by cold.
2. (Math.)
Definition: The process of shortening an operation.
3. The act of incurring or becoming subject to, as liabilities,
obligation, debts, etc.; the process of becoming subject to; as, the
contraction of a disease.
4. Something contracted or abbreviated, as a word or phrase; -- as,
plenipo for plenipotentiary; crim. con. for criminal conversation,
etc.
5. (Gram.)
Definition: The shortening of a word, or of two words, by the omission of a
letter or letters, or by reducing two or more vowels or syllables to
one; as, ne'er for never; can't for can not; don't for do not; it's
for it is.
6. A marriage contract. [Obs.] Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition