arccos
noun
arccos is spelled A-R-C-C-O-S: 6 letters. It appears about once in every 65 million words in written English, the 252,559th most frequent word form (wordfreq, 2021 data). As a noun, arccos means “Abbreviation of arccosine” (English Wiktionary, September 2026). The plural of arccos is arccoses.
How many letters and syllables are in arccos?
| Letters | 6: A-R-C-C-O-S |
|---|---|
| In writing | about once in every 65 million words; the 252,559th 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 arccos?
Arccos appears about once in every 65 million words in written English, the 252,559th 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).
Forms of arccos
- arccoses plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does arccos mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Abbreviation of arccosine.
arccos (1/2ϕ)=2π/5
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does arccos come from?
From arc- + cos.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).