a brand of hardboard.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Australian and NZ trademark a kind of dark brown hardboard used for partitions, lining, etc
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
1926, proprietary name of a type of fiberboard, by Mason Fibre Company, Laurel, Mississippi, U.S. As a word in mineralogy for a type of chloritoid, it honors Owen Mason of Providence, R.I.
Online Etymology Dictionary, © 2010 Douglas Harper