Noun: retinoblastoma ,re-tu-now,blas'tow-mu
- Malignant ocular tumour of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells
"Early detection of retinoblastoma can save a child's vision and life"
Derived forms: retinoblastomas
Type of: malignant neoplasm, malignant tumor [US], malignant tumour [Brit, Cdn], metastatic tumor [US], metastatic tumour [Brit, Cdn]
Encyclopedia: Retinoblastoma