Standard Lemma guide

retinoblastoma

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • CMU ARPABET: R EH2 T IH0 N OW2 B L AE2 S T OW1 M AH0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A malignant tumour of the retina; a hereditary condition found mostly in children.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, oncology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

malignant ocular tumor of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: malignant tumor, malignant neoplasm, metastatic tumor

History

Etymology

From retino- + blastoma.

Across languages

Translations

6 source translations are retained for this English entry.

  • Czech: retinoblastom — malignant tumour of the retina
  • Finnish: retinoblastooma — malignant tumour of the retina
  • Indonesian: retinoblastoma — malignant tumour of the retina
  • Italian: retinoblastoma — malignant tumour of the retina
  • Spanish: retinoblastoma — malignant tumour of the retina
  • Turkish: retinoblastom — malignant tumour of the retina