| 单词 | dilation |
| 释义 | dilation (once / 29256 pages) n Dilation is expansion, usually of an opening such as the pupil. When that happens, your eyes look black and the light comes streaming in. Grab your sunglasses! The word dilation is the noun form of dilate, "to make wider.” Dilation often refers to what happens when a woman goes into labor, and her cervix dilates to let the baby through. Dilation is also used for writing or speech that expands on a topic. Here’s a dilation: funny thing is that the -ate ending of dilate is not a suffix but part of the word, so it should really be dilatation, but no one says it that way. WORD FAMILYdilation: dilations+/dilatation: dilatations/dilate: dilatation, dilated, dilater, dilates, dilating, dilation, dilator/dilater: dilaters/dilator: dilators USAGE EXAMPLESThe mechanisms responsible for lowering blood pressure immediately after exercise are not fully understood, but involve dilation of the blood vessels. Salon(Dec 29, 2016) Eye scanners tracked the dilations of the subjects’ pupils as the music played. Science Magazine(Nov 28, 2016) Lots of squiggly worry lines and eyeballs in a state of permanent, panicked dilation. New York Times(Nov 11, 2016) 1n the act of expanding an aperture the dilation of the pupil of the eye Syn|Hypo|Hyper dilatation vasodilation dilation of blood vessels (especially the arteries) mydriasisreflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs enlargement, expansion the act of increasing (something) in size or volume or quantity or scope 2n a lengthy discussion (spoken or written) on a particular topic Hyper discourse, discussion, treatment an extended communication (often interactive) dealing with some particular topic |
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