Consisting of diatoms or their skeletons.(adjective)
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 "diatomaceous" in a sentence
"Such layers, or beds, of diatoms are called diatomaceous earth, or diatomite."
"Another product is a dust made of crushed fossils called diatomaceous earth that can be sprinkled on floors."
"Industrial steam, vacuuming and abrasives such as diatomaceous earth are some of the methods used for removing and controlling bedbugs."