Definition of retinoblastoma in English:


Syllabification: ret·ino·blas·to·ma
Pronunciation: /ˌretnˌōˌblaˈstōmə


  • A rare malignant tumor of the retina, affecting young children.
    More example sentences
    • The major controversy, however, is the actual magnitude of the risk of second tumors among survivors of retinoblastoma.
    • The most urgent diagnosis is retinoblastoma, a malignancy most likely arising from retinal germ cells.
    • Village farmer brings grandson Paarsha to the town doctor only to learn that the child is a one-in-a-million victim of the rare retinoblastoma.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody