名詞 contraction:

1. (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
   同義詞：muscular contraction, muscle contraction
2. the process or result of becoming smaller or pressed together
   同義詞：compression, condensation
3. a word formed from two or more words by omitting or combining some sounds
4. the act of decreasing (something) in size or volume or quantity or scope

1. A device for measuring the work capacity of a muscle or group of muscles during contraction.
   測(cè)力器用來(lái)測(cè)量在收縮中某一塊肌肉或一組肌肉做功能力的裝置
2. Shrinkage or contraction of the protoplasm away from the wall of a living plant or bacterial cell, caused by loss of water through osmosis.
   胞質(zhì)皺縮通過(guò)滲透作用由于缺水引起的活植細(xì)胞或細(xì)菌的細(xì)胞質(zhì)的皺縮或收縮，并與細(xì)胞壁分離
3. The contraction of muscle is a reaction of the body.
   肌肉的收縮是人體的一種反應(yīng)。
4. "I'll" is a contraction of "I will".
   “I'll”是“I will”的縮寫(xiě)。

con.trac.tion

n.（名詞）
The act of contracting or the state of being contracted.
收縮：收縮的行為或被縮小（短）的狀態(tài)
Abbr. cont.,contr.
縮寫(xiě) cont.,contr.
A word, aswon`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.
縮約詞：通過(guò)省略或結(jié)合一個(gè)較長(zhǎng)短語(yǔ)中的某些音素而形成的詞，如從will not 來(lái)的 won`t ，或短語(yǔ)如從 of the clock 來(lái)的 o`clock
The formation of such a word.
縮約：這種詞的形成
Physiology The shortening and thickening of functioning muscle or muscle fiber.
【生理學(xué)】 收縮：工作肌肉或肌肉纖維的變短和變粗
A period of decreased business activity.
蕭條時(shí)期：商業(yè)活動(dòng)減少的一段時(shí)期