1. (Science: astronomy) The aspect of planets distant from each other 120 degrees, or one third of the zodiac; trigon. In sextile, square, and trine. (milton)
2. A triad; trinity. A single trine of brazen tortoises. (Mrs. Browning) Eternal One, Almighty Trine! (Keble)
Origin: F. Trine, trin. See Trinal.