| 释义 | 
		nos·ing \ˈnōziŋ\ noun (-s) Etymology: nose (I) + -ing 1.   a.  : the usually rounded edge of a stair tread that projects over the riser  b.  : any of various similar rounded projections (as of molding) 2.   a.  : the end of a bridge pier  b.  : the transverse horizontal motion of a locomotive that exerts a lateral force on the track |