retinoblastoma

noun

ret·​i·​no·​blas·​to·​ma ˌre-tə-nō-ˌbla-ˈstō-mə 

plural retinoblastomas also retinoblastomata ˌre-tə-nō-ˌbla-ˈstō-mə-tə 

: a malignant tumor of the retina that develops during childhood, is derived from retinal germ cells, and is associated with a chromosomal abnormality

Examples of retinoblastoma in a Sentence

Recent Examples on the Web

There, her daughter was diagnosed with retinoblastoma. — Jordan Greene, PEOPLE, 20 Apr. 2026

The team is now collaborating with clinicians at Lausanne University Hospital and Jules Gonin Eye Hospital to adapt MagFlow for retinoblastoma therapy. — Neetika Walter, Interesting Engineering, 27 Oct. 2025

At this point, there were concerns Noah could have retinoblastoma, a rare type of cancer affecting the retina. — Jack Beresford, MSNBC Newsweek, 28 June 2025

Because of these developments and others, retinoblastoma has a very high survival rate in 21st century America. — Dayna Copeland, The Mercury News, 15 Mar. 2025

Word History

Etymology

New Latin, from retin- + blast- + -oma

First Known Use

1924, in the meaning defined above

Rhymes for retinoblastoma

• cholesteatoma
• epithelioma
• lymphogranuloma
• medulloblastoma
• mesothelioma
• adenocarcinoma
• choriocarcinoma
• pheochromocytoma
• ambystoma
• atheroma
• carcinoma
• coloboma

Medical Definition

retinoblastoma

noun

ret·​i·​no·​blas·​to·​ma ˌret-ᵊn-ō-ˌblas-ˈtō-mə 

plural retinoblastomas also retinoblastomata -mət-ə 

: a hereditary malignant tumor of the retina that develops during childhood, is derived from retinal germ cells, and is associated with a chromosomal abnormality