trass

[tras]

noun

a light-colored type of volcanic tuff used in making water-resistant cement and mortar.

Also called tar·ras [tuh-ras] /təˈræs/.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for trass

Historical Examples of trass

He wished that the Trass boy would talk forever about destiny.
Whilomville Stories
Stephen Crane
But the Trass boy finished his remarks about destiny in a very short time.
Whilomville Stories
Stephen Crane
The Dutch are very attentive in ascertaining the quality of the trass before using it in building their dikes.
An Account of the Bell Rock Light-House
Robert Stevenson
Sometimes a proportion of common sand mortar instead of lime is mixed with the trass.
A Dictionary of Arts, Manufactures and Mines
Andrew Ure
Trass, tras, n. a volcanic earth used as a hydraulic cement.
Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements)
Various

British Dictionary definitions for trass

trass

noun

a variety of the volcanic rock tuff, used to make a hydraulic cement

Word Origin for trass

from Dutch tras, tarasse, from Italian terrazza worthless earth; see terrace

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