Definition of quinary in English:

quinary

Syllabification: qui·na·ry
Pronunciation: /ˈkwīˌnerē
 
/

adjective

  • 1Fifth in order or rank.
  • 2 Zoology , • historical Relating to or denoting a former system of classification in which the animal kingdom is divided into five subkingdoms, and each subkingdom into five classes.
    More example sentences
    • When Darwin read that an opponent of the ‘quinary’ system was proposing a modification to sets of four, he expostulated in his notebooks, ‘Anyone may believe anything in such rigmarole about analogies and numbers’.

Origin

early 17th century: from Latin quinarius, from quini 'five at once, a set of five', from quinque 'five'.

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