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anaptychus

anaptychus noun: one of a pair of shelly plates found in some cephalopods, such as the ammonites. They are now considered to have been parts of the jaw.

Noun

anaptychus (plural anaptychi)

  1. One of a pair of shelly plates found in some cephalopods, such as the ammonites. They are now considered to have been parts of the jaw.

Forms of anaptychus

pluralanaptychi

Origin of anaptychus

From New Latin anaptychus, from Ancient Greek ἀνάπτυχος (anáptukhos, “unfolding”), from ἀναπτύσσω (anaptússō, “to unfold”).

Questions about anaptychus

What does anaptychus mean?
Anaptychus means one of a pair of shelly plates found in some cephalopods, such as the ammonites. They are now considered to have been parts of the jaw.
What part of speech is anaptychus?
Anaptychus is a noun.
What is the plural of anaptychus?
The plural of anaptychus is anaptychi.

Words near anaptychus in the dictionary

  1. anapsids
  2. anaptomorphine
  3. anaptomorphines
  4. anaptotic
  5. anaptychi
  6. anaptychus
  7. anaptyctic
  8. anaptyctical
  9. anaptyctically
  10. anaptyxes
  11. anaptyxis

Source and license

Adapted from Wiktionary: anaptychus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “anaptychus.” Word.ws, https://word.ws/anaptychus. Based on Wiktionary, CC BY-SA 4.0.