uracil
/ˈjʊərəsɪl/noun
uracil is spelled U-R-A-C-I-L: 6 letters. 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, uracil means “One of the bases of RNA, pairing with adenine” (English Wiktionary, September 2026). The plural of uracil is uracils.
How many letters and syllables are in uracil?
| Letters | 6: U-R-A-C-I-L |
|---|---|
| In writing | about once in every 11 million words; the 98,107th most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is uracil?
Uracil 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 uracil?
- /ˈjʊərəsɪl/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Tesco250-uracil.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with uracil?
No other word on PlainSpell ends in the same sounds as uracil.
Spelled with the same letters in another order: lauric, curial.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of uracil
- uracils plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does uracil mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
One of the bases of RNA, pairing with adenine.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Uracil in Spanish, French, German and Portuguese
In the sense one of the bases of RNA:
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 uracil come from?
From uro- + ac(etic) + -ile. Coined in 1885 by the German chemist Robert Behrend, who was attempting to synthesize derivatives of uric acid.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).