Word.ws English Dictionary

rudist

rudist noun: any of many box-, tube- or ring-shaped marine heterodont bivalves from the Jurassic and Cretaceous periods.

Noun

rudist (plural rudists)

  1. Any of many box-, tube- or ring-shaped marine heterodont bivalves from the Jurassic and Cretaceous periods.
    • In its shallow waters, now-extinct clams known as rudists formed extensive beds.2018, Tim Flannery, Europe: The First 100 Million Years, Penguin, published 2019, page 27

Forms of rudist

pluralrudists

Origin of rudist

From French rudistes (plural), from rude (“rough, uneven”), or its source, Latin rudis. Compare scientific Latin Rudista.

Words that rhyme with rudist

Questions about rudist

What does rudist mean?
Rudist means any of many box-, tube- or ring-shaped marine heterodont bivalves from the Jurassic and Cretaceous periods.
What part of speech is rudist?
Rudist is a noun.
What is the plural of rudist?
The plural of rudist is rudists.

Words near rudist in the dictionary

  1. Rudin
  2. Rudins
  3. rudish
  4. Rudisill
  5. Rudisills
  6. rudist
  7. rudistid
  8. rudistids
  9. rudists
  10. rudite
  11. rudites

Source and license

Adapted from Wiktionary: rudist (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.

Last updated:

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