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Definition of Dilating

Dilating: The widening and opening of an opening, such as the cervix or esophagus. For example, the amount of widening can be described in terms of the number of fingers that could fit in the cervical opening, or it is described in centimeters.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=3002
Last Editorial Review: 3/19/2012

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