amphioxus
noun
amphioxus is spelled A-M-P-H-I-O-X-U-S: 9 letters. It appears about once in every 56 million words in written English, the 234,209th most frequent word form (wordfreq, 2021 data). As a noun, amphioxus means “The lancelet, particularly of the genus Branchiostoma” (English Wiktionary, September 2026). The plural of amphioxus is amphioxi or amphioxuses.
How many letters and syllables are in amphioxus?
| Letters | 9: A-M-P-H-I-O-X-U-S |
|---|---|
| In writing | about once in every 56 million words; the 234,209th 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 amphioxus?
Amphioxus appears about once in every 56 million words in written English, the 234,209th 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 amphioxus
- amphioxi plural
- amphioxuses plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does amphioxus mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The lancelet, particularly of the genus Branchiostoma.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does amphioxus come from?
From Ancient Greek ἀμφί (amphí, “both”) + Ancient Greek ὀξύς (oxús, “sharp, keen”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).