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contraindicate con·tra·in·di·cate (kŏn'trə-ĭn'dĭ-kāt')
v. con·tra·in·di·cat·ed, con·tra·in·di·cat·ing, con·tra·in·di·cates
To indicate the inadvisability of something, such as a medical treatment.
contraindication con·tra·in·di·ca·tion (kŏn'trə-ĭn'dĭ-kā'shən)
A factor that renders the administration of a drug or the carrying out of a medical procedure inadvisable.