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in·tra·cav·i·tary -'kav-ə-.ter-ē adj situated or occurring within a body cavity esp of, relating to, or being treatment (as of cancer) characterized by the insertion of esp. radioactive substances in a cavity <treatment of cervical cancer by \intracavitary irradiation>
in·tra·cav·i·tar·i·ly -.kav-ə-'ter-ə-lē adv
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in·tra·cav·i·tary (in″trə-kavґĭ-tar″e) within a cavity, as that of the cervix or of the uterus.Medical dictionary. 2011.