1 [mass noun] light-coloured wood, especially when made up into furniture and ready for staining, varnishing, or painting: [as modifier]:a whitewood cabinet
2chiefly North American any of a number of trees which yield pale timber, in particular:
a silver fir (Abies alba, family Pinaceae).a basswood.the tulip tree.
whitewood in other Oxford dictionaries
Definition of whitewood in the US English dictionary