plagioclase
/ˈpleɪ.d͡ʒi.əˌkleɪs/noun
plagioclase is spelled P-L-A-G-I-O-C-L-A-S-E: 11 letters and 4 syllables. It appears about once in every 9 million words in written English, the 88,353rd most frequent word form (wordfreq, 2021 data). As a noun, plagioclase means “Any of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium” (English Wiktionary, September 2026). The plural of plagioclase is plagioclases.
How many letters and syllables are in plagioclase?
| Letters | 11: P-L-A-G-I-O-C-L-A-S-E |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | about once in every 9 million words; the 88,353rd most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is plagioclase?
Plagioclase appears about once in every 9 million words in written English, the 88,353rd 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 plagioclase?
- UK /ˈpleɪ.d͡ʒɪ.əˌkleɪz/
- US /ˈpleɪ.d͡ʒi.əˌkleɪs/
- US /ˈplæd͡ʒ.i.əˌkleɪs/
Plagioclase has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-plagioclase.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of plagioclase
- plagioclases plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does plagioclase mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Any of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Plagioclase in Spanish, French, German and Portuguese
In the sense group of feldspar minerals:
| Language | Words |
|---|---|
| German | Plagioklas |
| Spanish | plagioclasa |
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 plagioclase come from?
From plagio- + -clase, after German Plagioklas.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).