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单词 fissure
释义

WordReference Random House Learner's Dictionary of American English © 2024
fis•sure /ˈfɪʃɚ/USA pronunciation   n. [countable]
  1. a narrow opening, division, or groove:a fissure in the earth.

WordReference Random House Unabridged Dictionary of American English © 2024
fis•sure  (fishər),USA pronunciation n., v., -sured, -sur•ing. 
n. 
  1. a narrow opening produced by cleavage or separation of parts.
  2. cleavage (def. 1).
  3. Anatomya natural division or groove in an organ, as in the brain.

v.t. 
  1. to make fissures in;
    cleave;
    split.

v.i. 
  1. to open in fissures;
    become split.
  • Latin fissūra cleaving, cleft, fissure, equivalent. to fiss(us) divided (see fissi-) + -ūra -ure
  • late Middle English 1375–1425
fissu•ral, adj. 
fissure•less, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
fissure /ˈfɪʃə/ n
  1. any long narrow cleft or crack, esp in a rock
  2. a weakness or flaw indicating impending disruption or discord
  3. a narrow split or groove that divides an organ such as the brain, lung, or liver into lobes
vb
  1. to crack or split apart
Etymology: 14th Century: from medical Latin fissūra, from Latin fissus split
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