Appulse

Part of speech: noun (n.)

1. A driving or running towards; approach; impulse; also, the act of striking against. In all consonants there is an appulse of the organs. Holder.

2. The near approach of one heavenly body to another, or to the meridian; a coming into conjunction; as, the appulse of the moon to a star, or of a star to the meridian.