cunnilingus
From Longman Dictionary of Contemporary Englishcunnilinguscun‧ni‧lin‧gus /ˌkʌnɪˈlɪŋɡəs/ noun [uncountable] technical SYSEX/HAVE SEX WITHthe act of touching the female sex organs with the lips and tongue in order to give sexual pleasure → fellatioOrigin cunnilingus (1800-1900) Modern Latin Latin cunnus “female sex organ” + lingere “to lick”