siliceous
/sɪˈlɪ.ʃəs/adjective
siliceous is spelled S-I-L-I-C-E-O-U-S: 9 letters. It appears about once in every 11 million words in written English, the 100,430th most frequent word form (wordfreq, 2021 data). As an adjective, siliceous means “Of, relating to, consisting of, or resembling silica or silicates” (English Wiktionary, September 2026).
How many letters and syllables are in siliceous?
| Letters | 9: S-I-L-I-C-E-O-U-S |
|---|---|
| In writing | about once in every 11 million words; the 100,430th 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 siliceous?
Siliceous appears about once in every 11 million words in written English, the 100,430th 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 siliceous?
- /sɪˈlɪ.ʃəs/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-siliceous.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of siliceous
- more siliceous comparative
- most siliceous superlative
- silicious
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does siliceous mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Of, relating to, consisting of, or resembling silica or silicates.
- 2
Comprised of biogenic silicate minerals. Contrasted with the inorganic term siliciclastic.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Siliceous in Spanish, French, German and Portuguese
In the sense relating to silica:
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.