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oncology

on·col·o·gy

noun \än-ˈkäl-ə-jē, äŋ-\

plural on·col·o·gies

: the study of tumors

—on·co·log·i·cal \ˌäŋ-kə-ˈläj-i-kəl\ also on·co·log·ic \-ik\ adjective

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