Word.ws English Dictionary

aptychi

aptychi is the plural of aptychus.

Meaning of aptychus

Noun

aptychus (plural aptychi)

  1. A hard calcareous plate forming part of the body of an ammonite.
    • It wasn't until the 1970s that paleontologists had amassed enough evidence to be certain that aptychi were modified lower jaws.2017, Danna Staaf, Squid Empire, ForeEdge, →ISBN, page 95

Questions about aptychi

What is aptychi the plural of?
Aptychi is the plural of aptychus.

Words near aptychi in the dictionary

  1. aPTT
  2. APTU
  3. APTUs
  4. aptyalia
  5. aptyalism
  6. aptychi
  7. aptychus
  8. APU
  9. apu mallku
  10. apu mallkus
  11. apuanite

Source and license

Adapted from Wiktionary: aptychi (page history and authors); aptychus (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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