from The Century Dictionary.

  • Based upon five.
  • Divided in a set of five, as parts or organs of most radiates.
  • In zoology, same as quinarian.
  • noun A whole composed of five parts or elements.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Consisting of five; arranged by fives.
  • adjective (Zoöl.) a fanciful classification based on the hypothesis that each group contains five types.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of fifth rank or order.
  • adjective Consisting of five things; arranged in fives
  • adjective mathematics To the base of five; represented by the numerals 0, 1, 2, 3 and 4.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From the Latin quīnārius ("containing five each"), from quīnī ("five each”, “five at a time") + -ārius (whence the English suffix -ary); compare the French quinaire, the Italian quinario, and the Portuguese quinário.


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