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dilate

play
verb di·late \ˈdī-ˌlāt, dī-ˈ\

Simple Definition of dilate

  • : to become larger or wider

Full Definition of dilate

di·lat·eddi·lat·ing

  1. transitive verb
  2. 1 archaic :  to describe or set forth at length or in detail

  3. 2 :  to enlarge or expand in bulk or extent :  distend, widen

  4. intransitive verb
  5. 1 :  to comment at length :  discourse —usually used with on or upon

  6. 2 :  to become wide :  swell <the pupil of the eye dilates and contracts>

di·lat·abil·i·ty play \(ˌ)dī-ˌlā-tə-ˈbi-lə-tē\ noun
di·lat·able play \dī-ˈlā-tə-bəl, ˈdī-ˌ\ adjective
di·la·tor play \dī-ˈlā-tər, ˈdī-ˌ\ noun

Examples of dilate

  1. The drug causes the blood vessels to dilate.

  2. During labor, a woman's cervix will dilate to about 10 centimeters.

  3. The drug dilates the blood vessels.



Origin of dilate

Middle English, from Middle French dilater, from Latin dilatare, literally, to spread wide, from dis- + latus wide — more at latitude


First Known Use: 14th century

Synonym Discussion of dilate

expand, amplify, swell, distend, inflate, dilate mean to increase in size or volume. expand may apply regardless of the manner of increase (as growth, unfolding, addition of parts) <a business that expands every year>. amplify implies the extension or enlargement of something inadequate <amplify the statement with details>. swell implies gradual expansion beyond a thing's original or normal limits <the bureaucracy swelled to unmanageable proportions>. distend implies outward extension caused by pressure from within <a distended abdomen>. inflate implies expanding by introduction of air or something insubstantial and suggests a vulnerability to sudden collapse <an inflated ego>. dilate applies especially to expansion of circumference <dilated pupils>.

Medical Dictionary

dilate

play play
verb di·late \dī-ˈlāt, ˈdī-ˌ\

Medical Definition of dilate

di·lat·eddi·lat·ing

  1. transitive verb

  2. :  to enlarge, stretch, or cause to expand <dilate his pupils with atropine> <the drug dilates peripheral arteries>

  3. intransitive verb

  4. :  to become expanded or swollen <the cervix was dilating> <the pupils dilated>






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