Definitions for oncologyɒŋˈkɒl ə dʒi
Random House Webster's College Dictionary
on•col•o•gyɒŋˈkɒl ə dʒi(n.)
the branch of medical science dealing with tumors, including the diagnosis and treatment of cancer.
Origin of oncology:
the branch of medicine concerned with the study and treatment of tumors
The branch of medicine concerned with tumors, including study of their development, diagnosis, treatment, and prevention.