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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - Malignant ocular tumor of eye membrane cells.

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Usage examples (40)
  • The diagnosis of retinoblastoma is made by examining the eyes.
  • A major goal of treatment in children with retinoblastoma is preserving vision.
  • The average age of children with retinoblastoma is 18 months — and boys and girls are affected equally.
  • The cause of primary brain tumors is unknown, although some tumors such as retinoblastoma tend to be hereditary.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.