D defs.my
Entry 1 sense Webster, 1913

Quintile

/kwĭn'-tĭl/ · Quin·tile · IPA /kwˈɪntɪl/
01 n. The aspect of planets when separated the fifth part of the zodiac, or 72°.
  1. 1.
    The aspect of planets when separated the fifth part of the zodiac, or 72°.(Astron.)