A porous, lightweight, siliceous sedimentary rock composed of the shells of diatoms or radiolarians or of finely weathered chert, used as an abrasive and a polish.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tripoli" in a sentence
"This kind of tripoli has been lately dif - covered in Scotland."
"Not only does the treaty of tripoli signed by president madison say that THIS IS NOT A CHRISTIAN NATION, it also states mutually that we are in no way an enemy of islam, and vice versa."
"Do you know that Syrian mukhabarat selected `Atallah to lead the pro-Syrian forces that attacked tripoli in the 1980s?"