opaline
adjective, noun
opaline is spelled O-P-A-L-I-N-E: 7 letters and 3 syllables. It appears about once in every 21 million words in written English, the 139,999th most frequent word form (wordfreq, 2021 data). As an adjective, opaline means “Resembling opal in having a milky white iridescence” (English Wiktionary, September 2026).
How many letters and syllables are in opaline?
| Letters | 7: O-P-A-L-I-N-E |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | about once in every 21 million words; the 139,999th 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 opaline?
Opaline appears about once in every 21 million words in written English, the 139,999th 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 opaline?
Opaline has 3 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).
Forms of opaline
- more opaline comparative
- most opaline superlative
- opalines plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does opaline mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Resembling opal in having a milky white iridescence.
noun
- 1
A clear to white liquid secreted by sea hares (genus Aplysia) that becomes viscous upon contact with water.
The attack on a sea hare by a spiny lobster causes release of the whitish opaline, followed the co-release of both opaline and ink.
- 2
Any of several minerals resembling opal, including a variety of yellow chalcedony.
- 3
Synonym of opal glass.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Opaline in Spanish, French, German and Portuguese
In the sense resembling opal in its iridescence:
| Language | Words |
|---|---|
| Portuguese | opalino |
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 opaline come from?
From opal + -ine.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).