(dilator, dilators) Penis-shaped plastic objects used to stretch the vagina after radiotherapy to the pelvic area or cervix. Can help to prevent the vagina becoming too narrow to have sex comfortably. Can also be used to prevent narrowing of the vagina after surgery that has caused nerve damage in that area.
Found on http://www.cancerhelp.org.uk/utilities/glossary/index.htm?search=v
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