Astrol. [f. BI- pref.2 + QUINTILE.] An aspect of the planets, when they are distant from each other twice the fifth part of a great circle,—that is, 144 degrees.

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1647.  Lilly, Chr. Astrol., iii. 32. Kepler … hath added some new ones [aspects], as follow … A Biquintill Bq consisting of 144 degrees.

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1686.  Goad, Celest. Bodies, I. ii. 39. The Biquintile will look for some Respect.

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1727.  in Chambers, Cycl.; and in mod. Dicts.

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