These example sentences are selected automatically from various online news sources to reflect current usage of the word 'siliceous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
circa 1656, in the meaning defined above
Latin siliceus of flint, from silic-, silex hard stone, flint
Keep scrolling for more
Time Traveler for siliceous
See more words from the same year
Cite this Entry
“Siliceous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/siliceous. Accessed 25 Oct. 2020.
More Definitions for siliceous
Comments on siliceous
What made you want to look up siliceous? Please tell us where you read or heard it (including the quote, if possible).
See Definitions and Examples »
Get Word of the Day daily email!
Namesakes Word Quiz
Can you spell these 10 commonly misspelled words?
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Words from the week of 10/23/2020
Grab your popcorn and candy
Whereas 'coronary' is not so much
You can never have too much storage.
We're intent on clearing it up
We're gonna stop you right there
How to use a word that (literally) drives some pe...
The awkward case of 'his or her'
When names become words and then we ask you about...
Not your children's farm quiz.
Build a city of skyscrapers—one synonym at a time.