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单词 dilatation
释义

WordReference Random House Unabridged Dictionary of American English © 2024
dil•a•ta•tion  (dil′ə tāshən, dī′lə-),USA pronunciation n. 
  1. a dilated formation or part.
  2. Pathologyan abnormal enlargement of an aperture or a canal of the body.
  3. Surgery
    • an enlargement made in a body aperture or canal for surgical or medical treatment.
    • a restoration to normal patency of an abnormally small body opening or passageway, as of the anus or esophagus.
  4. Mechanicsthe increase in volume per unit volume of a homogeneous substance.
Also, dilation. 
  • Latin dīlātātiōn- (stem of dīlātātiō), equivalent. to dīlātāt(us) spread out (past participle of dīlātāre to dilate) + iōn- -ion
  • Old French)
  • Middle English (1350–1400
dil′a•tation•al, adj. 

WordReference Random House Learner's Dictionary of American English © 2024
di•late /daɪˈleɪt, ˈdaɪleɪt/USA pronunciation   v., -lat•ed, -lat•ing. 
  1. to (cause to) become wider, larger, or expanded: [no object]The cat's eyes dilated in the darkness.[+ object]The medicine will dilate the blood vessels.
di•la•tion /daɪˈleɪʃən/USA pronunciation  n. [uncountable]See -lat-2.

WordReference Random House Unabridged Dictionary of American English © 2024
di•late  (dī lāt, di-, dīlāt),USA pronunciation v., -lat•ed, -lat•ing. 
v.t. 
  1. to make wider or larger;
    cause to expand.
  2. [Archaic.]to describe or develop at length.

v.i. 
  1. to spread out;
    expand.
  2. to speak or write at length;
    expatiate (often fol. by on or upon).
  • Middle French dilater, Latin dīlātāre to spread out, equivalent. to dī- di-2 + lāt(us) broad + -āre infinitive suffix
  • Middle English dilaten 1350–1400
di•lat′a•bili•ty, n. 
di•lata•ble, adj. 
    • 1.See corresponding entry in Unabridged See expand. 

Collins Concise English Dictionary © HarperCollins Publishers::
dilate /daɪˈleɪt dɪ-/ vb
  1. to expand or cause to expand; make or become wider or larger
  2. (intr; often followed by on or upon) to speak or write at length; expand or enlarge
Etymology: 14th Century: from Latin dīlātāre to spread out, amplify, from dis- apart + lātus wide

diˈlatable adj diˌlataˈbility, diˈlatablenessdiˈlation, dilatation /ˌdaɪləˈteɪʃən ˌdɪ-/dilative /daɪˈleɪtɪv dɪ-/ adj
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更新时间:2024/9/22 3:31:17