trass

[ tras ]

noun

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

trass

/ træs /

noun

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

Word History and Origins

Origin of trass¹

First recorded in 1790–1800; from Dutch trass, from earlier terass, tieras, tiras “brick dust, rubbish,” from French terrasse; terrace ( def )

Word History and Origins

Origin of trass¹

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

Example Sentences

Sometimes a proportion of common sand mortar instead of lime is mixed with the trass.

From Project Gutenberg

Trass, tras, n. a volcanic earth used as a hydraulic cement.

From Project Gutenberg

After it has been quarried it is ground in mills, and used for cement stone under the name of trass.

From Project Gutenberg

He wished that the Trass boy would talk forever about destiny.

From Project Gutenberg

The Dutch are very attentive in ascertaining the quality of the trass before using it in building their dikes.

From Project Gutenberg