Lexic.us

Definition of Trass

1. n. A white to gray volcanic tufa, formed of decomposed trachytic cinders; -- sometimes used as a cement. Hence, a coarse sort of plaster or mortar, durable in water, and used to line cisterns and other reservoirs of water.

Definition of Trass

1. Noun. (geology) A white to grey volcanic tufa, formed of decomposed trachytic cinders, sometimes used as a cement. ¹

2. Noun. A coarse sort of plaster or mortar, durable in water, and used to line cisterns and other reservoirs of water. ¹

¹ Source: wiktionary.com

Definition of Trass

1. a volcanic rock [n -ES]

Medical Definition of Trass

1. A white to gray volcanic tufa, formed of decomposed trachytic cinders; sometimes used as a cement. Hence, a coarse sort of plaster or mortar, durable in water, and used to line cisterns and other reservoirs of water. [Formerly written also tarras, tarrace, terras. The Dutch trass is made by burning and grinding a soft grayish rock found on the lower Rhine. Origin: D. Tras or Gr. Trass, probably fr. It. Terrazzo terrace. See Terrace. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Trass

Literary usage of Trass

Below you will find example usage of this term as found in modern and/or classical literature:

1. Chemical Technology: Or, Chemistry, Applied to the Arts and to Manufactures by Friedrich Ludwig Knapp, Walter Rogers Johnson (1849)
"trass or Tarros.—After entering Germany, and having taken possession of the Rhine, the Romans soon recognized, in the layers of trass near Bonn, ..."

2. Chemical Technology: Or, Chemistry, Applied to the Arts and to Manufactures by Friedrich Ludwig Knapp, Walter Rogers Johnson (1849)
"trass or Tarros.—After entering Germany, and having taken possession of the Rhine, the Romans soon recognized, in the layers of trass near Bonn, ..."

3. History of the Extinct Volcanoes of the Basin of Neuwied on the Lower Rhine by Samuel Hibbert (1832)
"Under these previous circumstances the upper channel of the Bruhl formed a sort of lateral valley, which met the proper trass valley of the Bruhl at nearly ..."

4. Essays on Hydraulic and Common Mortars and on Limeburning by Clément Louis Treussart, Jean Constant Petot, C. Courtois (1838)
"CHAPTER V. On Hydraulic Mortars made of fat lime and trass, or fat lime ... trass is a substance obtained from the village of Brohl, near Andernach,on the ..."

5. The Mechanics' Magazine, Museum, Register, Journal, and Gazette (1838)
"It is seen that after a certain quantity of sand has been added, the mortars lose much of their tenacity : and that for every degree of calcination, trass ..."

6. Elements of Geology; Or, The Ancient Changes of the Earth and Its by Charles Lyell (1865)
"... trachytic breccias—Age of the brown- coal—Peculiar characters of the volcanos of the tipper and lower Eifel—like Craters—trass—Hungarian volcanos. ..."

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