Word.ws English Dictionary

quindecimal

quindecimal adjective: based on the number fifteen, base 15.

Adjective

quindecimal (not comparable)

  1. Based on the number fifteen, base 15.
    • here the system assumes a quinary, or, perhaps more properly, a quindecimal radix, sixteen being expressed by a word signifying fifteen and one; seventeen, fifteen and two, &c.1834, Dionysius Lardner, Treatise on Arithmetic, Practical and Theoretical, page 17

Origin of quindecimal

From Latin quindecimalis, from quindecim (“15”) + -ālis (“-al”), from quinque (“5”) + decem (“10”). Equivalent to quindecim + -al.

Questions about quindecimal

What does quindecimal mean?
Quindecimal means based on the number fifteen, base 15.
What part of speech is quindecimal?
Quindecimal is an adjective.

Words near quindecimal in the dictionary

  1. quindecillion
  2. quindecillions
  3. quindecillionths
  4. quindecim
  5. quindecima
  6. quindecimal
  7. quindecimas
  8. quindecims
  9. quindecimvir
  10. quindecimviral
  11. quindecimvirate

Source and license

Adapted from Wiktionary: quindecimal (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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