nonagenary

English dictionary entry

Meanings

adj
  1. Of or related to the number ninety.
noun
  1. Synonym of square or quadrature, a rising at a 90 degree angle to the position of another heavenly body, particularly the sun.

Word forms

nonagenary nonagenaries

Etymology

From Latin nōnāgēnārius (“containing 90”) either directly or via Middle French nonagénaire, from Latin nōnāgēnī (“90 each”) + -ārius (“-ary”), from nōnāgintā (“nine tens, 90”).

Synonyms

square or quadrature
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