| 释义 | 
		ripple mark noun 1.   a.  : the undulating surface of a ridge or trough produced in incoherent granular material (as loose sand) by wind, currents of water, or the agitation of waves  b.  : one of the ridges on such a surface 2.  : a striation across the grain of wood especially on the tangential surface caused by storied cambial and other cells • ripple-marked \ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\ adjective |