clapotis		a standing wave caused by reflection from a breakwater, etc.
reflet		an effect due to the reflection of light from a surface, esp. of pottery; iridescence.
schlieren		streaks caused by differing indices of refraction in a transparent liquid; streaks in an igneous rock that are of different composition from the mass.
wry		(arch.) to swerve or turn aside.
laurence		the shimmering mirage of reflected sky, seen over hot surfaces.
retrodirective		having three reflective surfaces so as to reverse the direction of incident light rays.
pointel		an abstract-patterned tile mosaic.
delitescent		concealed; latent.
perdu		hidden.