quinary

quinary
[ˈkwʌɪnəri]
adjective
  1. of or relating to the number five, in particular
    五的,尤指
    ■of the fifth order or rank
    第五的
    ■(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
    (动 史)(动物界分类)五分体系的
语源
  1. early 17th cent.: from Latin quinarius, from quini 'five at once, a set of five', from quinque 'five'
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