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

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

This is why pediatricians developed standard screening for retinoblastoma starting at birth. —Dayna Copeland, The Mercury News, 15 Mar. 2025

The first symptom of retinoblastoma usually appears in photographs, the Cleveland Clinic says, when the pupil shows up white in flash photography. —Cara Lynn Shultz, People.com, 7 Jan. 2025

For children, the most common types of cancers are leukemia, brain and spinal cord tumors, neuroblastoma, Wilms tumor, lymphoma, rhabdomyosarcoma, retinoblastoma and bone cancer, according to the American Cancer Society. —Ashlyn Messier, Fox News, 24 Sep. 2023

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