Pronunciation: (stâr'step"), [key]
—n., v., -stepped, -step•ping,
1. a step in a staircase.
2. stairsteps,stairs; a staircase.
3. a person or thing whose position, status, behavior, or the like suggests the shape or rise of the steps in a staircase: Their six children are stairsteps ranging from ages two to twelve.
to occur or move in a regular pattern suggesting the steps of a staircase: housing units stairstepping down the hill to the edge of the lake.
suggesting or resembling the steps of a staircase, as in movement or shape: stairstep progress in improved appliance sales. Also,stair'-step".
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.