oncology oncological • oncome · · · Info · Definitions · Characters · · oncology · · Text Latin · · Script 8 · · Length Definitions · · · (noun) the branch of medicine concerned with the study and treatment of tumors. · · Noun Definition 1 Characters · · c latin small letter c U+0063 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F y latin small letter y U+0079