n. pl. tri·plic·i·ties 1. The quality or condition of being triple. 2. A group or set of three. 3. In astrology, one of four groups of the zodiac, each consisting of three signs separated from each other by 120°. Also called trigon. [Middle English, three signs of the zodiac, from Late Latin triplicitās, triplicity, from Latin triplex, triplic-, triplex; see TRIPLEX.] |
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