placoid
adjective, noun
placoid is spelled P-L-A-C-O-I-D: 7 letters and 2 syllables. It appears about once in every 81 million words in written English, the 286,585th most frequent word form (wordfreq, 2021 data). As an adjective, placoid means “Platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoid fish” (English Wiktionary, September 2026).
How many letters and syllables are in placoid?
| Letters | 7: P-L-A-C-O-I-D |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | about once in every 81 million words; the 286,585th 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 placoid?
Placoid appears about once in every 81 million words in written English, the 286,585th 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 placoid?
Placoid has 2 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 placoid
- placoids plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does placoid mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoid fish
noun
- 1
Such a scale
- 2
Any fish having placoid scales, such as the sharks
- 3
A placodioid lichen
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does placoid come from?
From Ancient Greek πλάξ (pláx, stem plak-) + -oid.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).