Word.ws English Dictionary

quad-

quad- prefix: involving four elements.

Prefix

quad-

  1. Involving four elements.
  2. Used for the digit four to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.
    • un- (“1”) + bi- (“2”) + quad- (“4”) + -ium (element suffix) → unbiquadium (“element 124”)

Origin of quad-

Reduced form of quadri-, from Latin quattuor (“four”).

Questions about quad-

What does quad- mean?
Quad- means involving four elements.
What part of speech is quad-?
Quad- is a prefix.

Words near quad- in the dictionary

  1. quad rugby
  2. quad skate
  3. quad skates
  4. quad suit
  5. quad suits
  6. quad-
  7. Quad-City
  8. quad-core
  9. quad-demic
  10. quad-demics
  11. Quadaffi

Source and license

Adapted from Wiktionary: quad- (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: “quad-.” Word.ws, https://word.ws/quad-. Based on Wiktionary, CC BY-SA 4.0.