retinoblastoma

/ˈrɛtənoʊˌblæˈstoʊmə/
IPA guide

Definitions of retinoblastoma
  1. noun
    malignant ocular tumor of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells
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    type of:
    malignant neoplasm, malignant tumor, metastatic tumor
    a tumor that is malignant and tends to spread to other parts of the body
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