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单词 contagious
释义 contagious
 —contagiously,  adv.   —contagiousness, contagiosity /keuhn tay'jee os"i tee/,  n.  
 /keuhn tay"jeuhs/,  adj.  
  1. capable of being transmitted by bodily contact with an infected person or object: contagious diseases.
  2. carrying or spreading a contagious disease.
  3. tending to spread from person to person: contagious laughter.
 [1350-1400; ME < LL contagiosus, equiv. to contagi(o) CONTAGION + -osus -OUS]
 Syn. 1. CONTAGIOUS, INFECTIOUS are usually distinguished in technical medical use. CONTAGIOUS, literally "communicable by contact," describes a very easily transmitted disease as influenza or the common cold. INFECTIOUS refers to a disease involving a microorganism that can be transmitted from one person to another only by a specific kind of contact; venereal diseases are usually infectious. In nontechnical senses, CONTAGIOUS emphasizes the rapidity with which something spreads: Contagious laughter ran through the hall. INFECTIOUS suggests the pleasantly irresistible quality of something: Her infectious good humor made her a popular guest.
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更新时间:2024/9/21 18:39:18