oncology

noun

on·​col·​o·​gy än-ˈkä-lə-jē 

äŋ-

: a branch of medicine concerned with the prevention, diagnosis, treatment, and study of cancer

oncological

ˌäŋ-kə-ˈlä-ji-kəl 

adjective

or oncologic

ˌäŋ-kə-ˈlä-jik 

oncologist

än-ˈkä-lə-jist 

äŋ-

noun

Examples of oncology in a Sentence

Recent Examples on the Web

Trodelvy sales rose 14% YoY, and Gilead is broadening its oncology strategy with a $750M licensing deal with Kymera. —Tony Zhang, CNBC, 22 Oct. 2025

But sometimes there are no visible symptoms at all — which can impact outcomes, says Jason Aboudi Mouabbi, MD, an assistant professor of breast medical oncology at the University of Texas MD Anderson Cancer Center in Houston. —Emily Kay Votruba, EverydayHealth.com, 21 Oct. 2025

It’s led by oncology social workers, who provide free emotional support for caregivers and people with cancer. —Korin Miller, Flow Space, 20 Oct. 2025

Prior to Schleicher’s oncology appointment, she was notified that she would likely be admitted for aggressive treatment on July 31, 2025. —Tereza Shkurtaj, PEOPLE, 18 Oct. 2025

Word History

Etymology

onco- + -logy

First Known Use

circa 1857, in the meaning defined above

Rhymes for oncology

• anthology
• apology
• astrology
• biology
• christology
• chronology
• conchology
• cosmology
• cryptology
• cytology
• doxology
• ecology

Kids Definition

oncology

noun

on·​col·​o·​gy än-ˈkäl-ə-jē 

: a branch of medicine concerned with the study and treatment of tumors

Medical Definition

oncology

noun

on·​col·​o·​gy än-ˈkäl-ə-jē, äŋ- 

plural oncologies

: a branch of medicine concerned with the prevention, diagnosis, treatment, and study of cancer

oncological

ˌäŋ-kə-ˈläj-i-kəl 

adjective

also oncologic

-ik