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单词 dilation
释义

WordReference Random House Unabridged Dictionary of American English © 2024
di•la•tion  (dī lā′shən, di-),USA pronunciation n. 
  1. the act of dilating;
    state of being dilated.
  2. Mechanicsdilatation.
  • dilate + -ion 1590–1600

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-, dī′lāt),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•bil′i•ty, n. 
di•lat′a•ble, adj. 
    • 1.See corresponding entry in Unabridged See expand. 
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更新时间：2026/6/18 14:38:09