pentoxide
noun
pentoxide is spelled P-E-N-T-O-X-I-D-E: 9 letters. It appears about once in every 23 million words in written English, the 146,811th most frequent word form (wordfreq, 2021 data). As a noun, pentoxide means “any oxide containing five oxygen atoms in each molecule” (English Wiktionary, September 2026). The plural of pentoxide is pentoxides.
How many letters and syllables are in pentoxide?
| Letters | 9: P-E-N-T-O-X-I-D-E |
|---|---|
| In writing | about once in every 23 million words; the 146,811th 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 pentoxide?
Pentoxide appears about once in every 23 million words in written English, the 146,811th 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 pentoxide
- pentoxides plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does pentoxide mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
any oxide containing five oxygen atoms in each molecule
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Pentoxide in Spanish, French, German and Portuguese
In the sense oxide containing five oxygen atoms:
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.