释义 |
contractionenUK
con·trac·tion C0605700 (kən-trăk′shən) n. 1. The act of contracting or the state of being contracted. 2. a. A word, as won't from will not, or phrase, as o'clock from of the clock, formed by omitting or combining some of the sounds of a longer phrase. b. The formation of such a word. 3. a. Physiology The shortening and thickening of functioning muscle or muscle fiber. b. Any of a series of sudden and involuntary tightenings of the uterine muscles occurring before or during childbirth. 4. A period of decreased business activity. contraction (kənˈtrækʃən) n1. an instance of contracting or the state of being contracted2. (Physiology) physiol any normal shortening or tensing of an organ or part, esp of a muscle, e.g. during childbirth3. (Pathology) pathol any abnormal tightening or shrinking of an organ or part4. (Linguistics) a shortening of a word or group of words, often marked in written English by an apostrophe: I've come for I have come. conˈtractive adj conˈtractively adv conˈtractiveness ncon•trac•tion (kənˈtræk ʃən) n. 1. an act or instance of contracting. 2. the quality or state of being contracted. 3. a shortened form of a word or group of words, with the omitted letters often replaced in written English by an apostrophe, as isn't for is not, they're for they are, e'er for ever. 4. the change in a muscle by which it becomes thickened and shortened. 5. a decrease in economic and industrial activity. [1375–1425; (< Middle French) < Latin contractiō=contrac-, variant s. of contrahere (see contract) + -tiō -tion] con•trac′tion•al, adj. con•trac′tive (-tɪv) adj. con•trac′tive•ness, n. usage: Contractions (isn't, couldn't, can't, he'll) occur chiefly, although not exclusively, in informal speech and writing. They are common in personal letters, business letters, journalism, and fiction; rare in scientific and scholarly writing. Contractions in formal writing usu. represent speech. con·trac·tion (kən-trăk′shən) The shortening and thickening of a muscle in action. Contraction of the biceps of the arm causes the elbow to bend.ThesaurusNoun | 1. | contraction - (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)muscle contraction, muscular contractionshortening - act of decreasing in length; "the dress needs shortening"contracture - an abnormal and usually permanent contraction of a muscletetanus - a sustained muscular contraction resulting from a rapid series of nerve impulsesuterine contraction - a rhythmic tightening in labor of the upper uterine musculature that contracts the size of the uterus and pushes the fetus toward the birth canalBraxton-Hicks contraction, false labor - painless contractions of the muscles of the uterus that continue throughout pregnancy with increasing frequencyvaginismus - muscular contraction that causes the vagina to close; usually an anxiety reaction before coitus or pelvic examinationphysiology - the branch of the biological sciences dealing with the functioning of organisms | | 2. | contraction - the process or result of becoming smaller or pressed together; "the contraction of a gas on cooling"compression, condensationshrinkage, shrinking - process or result of becoming less or smaller; "the material lost 2 inches per yard in shrinkage"coarctation, constriction - tight or narrow compression | | 3. | contraction - 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'"word - a unit of language that native speakers can identify; "words are the blocks from which sentences are made"; "he hardly said ten words all morning" | | 4. | contraction - the act of decreasing (something) in size or volume or quantity or scopereduction, step-down, diminution, decrease - the act of decreasing or reducing somethingenlargement, expansion - the act of increasing (something) in size or volume or quantity or scope |
contractionnoun1. tightening, narrowing, tensing, shortening, drawing in, constricting, shrinkage Cramp is caused by contraction of the muscles.2. abbreviation, reduction, shortening, compression, diminution, constriction, elision `It's' is a contraction of `it is'.Translationscontract (kənˈtrӕkt) verb1. to make or become smaller, less, shorter, tighter etc. Metals expand when heated and contract when cooled; `I am' is often contracted to `I'm'; Muscles contract. 收縮 收缩2. ( American ˈkontrakt) to promise legally in writing. They contracted to supply us with cable. 簽約 订契约3. to become infected with (a disease). He contracted malaria. 染病 得病4. to promise (in marriage). 訂婚 订婚约 (ˈkontrӕkt) noun a legal written agreement. He has a four-year contract (of employment) with us; The firm won a contract for three new aircraft. 契約,合同 契约,合同 conˈtraction (-ʃən) noun1. an act of contracting. contraction of metals; contraction of muscles. 收縮 收缩2. a word shortened in speech or spelling. `I'm' is a contraction of `I am'. 詞的縮約形式 缩约词conˈtractor noun a person or firm that promises to do work or supply goods at a fixed rate. a building contractor. 承包人(商) 承包人(商),承包单位 contractionenUK
contraction, in physics: see expansionexpansion, in physics, increase in volume resulting from an increase in temperature. Contraction is the reverse process. When heat is applied to a body, the rate of vibration and the distances between the molecules composing it are increased and, hence, the space occupied by the ..... Click the link for more information. .
contraction, in writing: see abbreviationabbreviation, in writing, arbitrary shortening of a word, usually by cutting off letters from the end, as in U.S. and Gen. (General). Contraction serves the same purpose but is understood strictly to be the shortening of a word by cutting out letters in the middle, the omission ..... Click the link for more information. .contraction[kən′trak·shən] (graphic arts) A microfilm defect in the form of a compressed image that occurs when the film speed is reduced as the document passes through a rotary microfilmer. (mathematics) A function f from a metric space to itself for which there is a constant K that is less than 1 such that, for any two elements in the space, a and b, the distance between f (a) and f (b) is less than K times the distance between a and b. (mechanics) The action or process of becoming smaller or pressed together, as a gas on cooling. (physiology) Shortening of the fibers of muscle tissue. contractionOf concrete, the sum of volume changes occurring as the result of all processes affecting the bulk volume of a mass of concrete.contraction1. Physiol any normal shortening or tensing of an organ or part, esp of a muscle, e.g. during childbirth 2. Pathol any abnormal tightening or shrinking of an organ or part contractionenUK
contraction [kon-trak´shun] a drawing together; a shortening or shrinkage.Braxton Hicks c's see braxton hicks contractions.carpopedal contraction the condition resulting from chronic shortening of the muscles of the upper and lower limbs including the fingers and toes, seen in tetany" >tetany.concentric contraction contraction resulting in shortening of a muscle, used to perform positive work or to accelerate a body part. It is metabolically more demanding than an contraction" >eccentric contraction. Called also shortening contraction.Dupuytren's contraction Dupuytren's contracture.eccentric contraction contraction in the presence of a resistive force that results in elongation of a muscle, used to perform negative work or to decelerate a body part. It is less metabolically demanding than a concentric contraction but may cause disruption of associated connective tissue with delayed soreness or frank injury if it occurs in an unaccustomed manner. Called also lengthening contraction.end-diastolic premature ventricular contraction a ventricular beat" >ectopic beat falling at the end of diastole; it may or may not be slightly premature and may or may not be a fusion beat.haustral c's muscular contractions of the wall of the large intestine during which the haustra can be seen more easily; called also haustrations.isometric contraction muscle contraction without appreciable shortening or change in distance between its origin and insertion.isotonic contraction muscle contraction without appreciable change in the force of contraction; the distance between the origin and insertion becomes lessened.lengthening contraction eccentric contraction.postural contraction the state of muscular tension and contraction that just suffices to maintain the posture of the body.segmental c's muscular contractions of the small intestine that serve to mix and transport chyme.shortening contraction concentric contraction.contraction stress test observation of the fetal heart rate in response to uterine contractions; see also fetal monitoring.tetanic contraction (tonic contraction) tetanus" >physiological tetanus.Volkmann's contraction Volkmann's contracture.con·trac·tion (C), (kon-trak'shŭn), Do not confuse this word with contracture.1. A shortening or increase in tension; denoting the normal function of muscle. 2. Shrinkage or reduction in size. 3. Heart beat, as in premature contraction. [L. contractus, drawn together] contraction (kən-trăk′shən)n.1. The act of contracting or the state of being contracted.2. a. A word, as won't from will not, or phrase, as o'clock from of the clock, formed by omitting or combining some of the sounds of a longer phrase.b. The formation of such a word.3. Physiology The shortening and thickening of functioning muscle or muscle fiber.4. A period of decreased business activity.contraction Cardiology A heart beat. See Premature ventricular contraction GI disease The shortening of the muscularis propria of the GI tract, resulting in peristalsis. See Giant peristaltic contraction Obstetrics The shortening of myometrial cells, resulting in ↑ intrauterine tension. See Braxton Hicks contraction Physiology A ↓ in muscle length, accompanied by ↑ tension. See Concentration contraction, Isometric contraction, Isotonic contraction. con·trac·tion (C) (kŏn-trak'shŭn) 1. A shortening or increase in tension; denoting the normal function of muscle. 2. A shrinkage or reduction in size. 3. Heart beat, as in premature contraction. [L. contractus, drawn together]contraction The primary function of muscle by which a change of shape brings the ends closer together. By contracting, muscles bring about movement of bones or other parts. The term comes from a Latin word meaning ‘to draw together’ so, strictly, a phrase such as ‘isotonic contraction’ is a contradiction in terms. Popular usage, however, will have it that a muscle can contract without shortening.ContractionA tightening of the uterus during pregnancy. Contractions may or may not be painful and may or may not indicate labor.Mentioned in: Premature Laborcon·trac·tion (kŏn-trak'shŭn) Do not confuse this word with contracture.1. Condition wherein maxillary and mandibular structures are closer than normal to median plane. 2. A shortening or increase in tension; denoting the normal function of muscle. 3. Shrinkage or reduction in size. [L. contractus, drawn together]ContractionenUK Related to Contraction: muscle contractionCONTRACTION. An abbreviation; a mode of writing or printing by which some of the letters of a word are omitted. See Abbreviations. ContractionenUK
ContractionIn a business cycle, the time between the peak and the bottom. That is, a contraction occurs between the end of economic growth and the end of the subsequent recession. Contractions are characterized by layoffs, a decline in GDP, and other negative factors. However, historically, contractions have tended not to last as long as expansions.See CONTR See CTXcontractionenUK Related to contraction: muscle contractionSynonyms for contractionnoun tighteningSynonyms- tightening
- narrowing
- tensing
- shortening
- drawing in
- constricting
- shrinkage
noun abbreviationSynonyms- abbreviation
- reduction
- shortening
- compression
- diminution
- constriction
- elision
Synonyms for contractionnoun (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)Synonyms- muscle contraction
- muscular contraction
Related Words- shortening
- contracture
- tetanus
- uterine contraction
- Braxton-Hicks contraction
- false labor
- vaginismus
- physiology
noun the process or result of becoming smaller or pressed togetherSynonymsRelated Words- shrinkage
- shrinking
- coarctation
- constriction
noun a word formed from two or more words by omitting or combining some soundsRelated Wordsnoun the act of decreasing (something) in size or volume or quantity or scopeRelated Words- reduction
- step-down
- diminution
- decrease
Antonyms |