cuprous
/ˈkjuːpɹəs/adjective
cuprous is spelled C-U-P-R-O-U-S: 7 letters. It appears about once in every 35 million words in written English, the 182,517th most frequent word form (wordfreq, 2021 data). As an adjective, cuprous means “Of, or of the nature of, copper” (English Wiktionary, September 2026).
How many letters and syllables are in cuprous?
| Letters | 7: C-U-P-R-O-U-S |
|---|---|
| In writing | about once in every 35 million words; the 182,517th most frequent word form |
| Wrong spellings searched | none measured in search |
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).
How common is cuprous?
Cuprous appears about once in every 35 million words in written English, the 182,517th 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 cuprous?
- UK /ˈkjuːpɹəs/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-cuprous.wav, Wikimedia Commons (author and licence on each file's page).
What does cuprous mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Of, or of the nature of, copper.
- 2
Containing copper with an oxidation number of 1.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does cuprous come from?
From Latin cuprum (“copper”), + -ous.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).