The Collaborative International Dictionary of English v.0.48:
handstand \handstand\ n. The gymnastic act of supporting oneself by one's hands alone in an upside down position; as, to do handstands for exercise. [WordNet 1.5 +PJC]WordNet (r) 3.0 (2006):
handstand n 1: the act of supporting yourself by your hands alone in an upside down position