appulse

英[ә'pʌls]

n. 趋向, 撞击

n. A driving or running towards; approach; impulse; also, the\n act of striking against.\nn. The near approach of one heavenly body to another, or to\n the meridian; a coming into conjunction; as, the appulse of the moon to\n a star, or of a star to the meridian.