a betulaceous tree, Betula pendula, of N temperate regions of the Old World, having silvery-white peeling barkSee also birch (def. 1)
Why Do We Call It The “Silver Screen”?Since its introduction in the early 20th century, the film industry’s contributions to the English language have been manifold.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for silver birch
She seated herself on the deep moss and balanced her back against a silver-birch tree.The Maid-At-Arms|Robert W. Chambers