retinoblastoma
noun
retinoblastoma is spelled R-E-T-I-N-O-B-L-A-S-T-O-M-A: 14 letters and 6 syllables. It appears about once in every 11 million words in written English, the 98,107th most frequent word form (wordfreq, 2021 data). As a noun, retinoblastoma means “A malignant tumour of the retina; a hereditary condition found mostly in children” (English Wiktionary, September 2026). The plural of retinoblastoma is retinoblastomas or retinoblastomata.
How many letters and syllables are in retinoblastoma?
| Letters | 14: R-E-T-I-N-O-B-L-A-S-T-O-M-A |
|---|---|
| Syllables | 6 (from its American pronunciation) |
| In writing | about once in every 11 million words; the 98,107th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is retinoblastoma?
Retinoblastoma appears about once in every 11 million words in written English, the 98,107th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce retinoblastoma?
Retinoblastoma has 6 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of retinoblastoma
- retinoblastomas plural
- retinoblastomata plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does retinoblastoma mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A malignant tumour of the retina; a hereditary condition found mostly in children.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Retinoblastoma in Spanish, French, German and Portuguese
In the sense malignant tumour of the retina:
| Language | Words |
|---|---|
| Spanish | retinoblastoma |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does retinoblastoma come from?
From retino- + blastoma.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).