- any of various white, earthy or powdery substances, as pipe clay, gypsum, kaolin, or magnesia.
Origin of terra alba
1870–75; < Latin: white earth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a white finely powdered form of gypsum, used to make paints, paper, etc
- any of various other white earthy substances, such as kaolin, pipeclay, and magnesia
from Latin, literally: white earth
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