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Webster 1913 Edition

Noun.

[Pref.

bi-

quintile

: cf. F.

biquintile

(Astron.)

An aspect of the planets when they are distant from each other by twice the fifth part of a great circle – that is, twice 72 degrees.

Noun.

[L. bis, twice, and quintus, fifth.]

An aspect of the planets, when they are distant from each other, by twice the fifth part of a great circle, that is 144 degrees or twice 72 degrees.

biquintile ‎(plural biquintiles)

(astrology) An aspect of two planets that are distant from each other by two fifths of a great circle (72 degrees)