: the dioxide of silicon SiO2 occurring in crystalline, amorphous, and impure forms (as in quartz, opal, and sand respectively)
Examples of silica in a Sentence
Recent Examples on the Web
The regulations also require periodic free health examinations for miners and state that mine operators are in charge of monitoring silica exposure and preventing overexposure.
—
Annalisa Merelli, STAT, 16 Apr. 2024
Not your grandfather's black lung:Federal rule seeks to save coal miners from silica dust
Officials and experts have known for decades that inhaling silica dust, a carcinogen also known as crystalline silica, produces permanent scarring in the lungs and limits lung capacity.
—Eduardo Cuevas, USA TODAY, 16 Apr. 2024
But at Trocadero Soda Springs, an unusual effervescence comes from the water filtering through a crust of tufa made from hard deposits of silica or calcium carbonate.
—Shoshi Parks, Smithsonian Magazine, 25 Jan. 2024
Mason Natural, Probiotic Acidophilus with Pectin Mason Natural Probiotic Acidophilus with Pectin supplement comes in 100-capsule packages with gelatin, magnesium stearate and silica as the main ingredients.
—Amber Smith, Discover Magazine, 6 Jan. 2024
But all of those use sol-gel processes involving different organic mixtures loaded with silica nanoparticles.
—Jennifer Ouellette, Ars Technica, 7 July 2023
Yee found that the same proton pump also helps diatoms make their tough silica shell.
—Kevin Hartnett, Quanta Magazine, 6 July 2023
On Whitehaven Beach, the pure white, silica sand, and emerald waters create a gorgeous palate of colors that is a feast for the senses.
—Andrea Romano, Travel + Leisure, 20 June 2023
Buy Now on Sephora: $20 Hiki Anti-Sweat Powder Generously sprinkle some of this powder (corn starch, silica, kaolin) in your drawers for a tingly-fresh feeling—and one that prevents you from having to sit in your own swampy filth all day, in addition to preventing chafing.
—Adam Hurly, Robb Report, 31 May 2023
Annalisa Merelli, STAT, 16 Apr. 2024
Not your grandfather's black lung:Federal rule seeks to save coal miners from silica dust
Officials and experts have known for decades that inhaling silica dust, a carcinogen also known as crystalline silica, produces permanent scarring in the lungs and limits lung capacity.
—Eduardo Cuevas, USA TODAY, 16 Apr. 2024
But at Trocadero Soda Springs, an unusual effervescence comes from the water filtering through a crust of tufa made from hard deposits of silica or calcium carbonate.
—Shoshi Parks, Smithsonian Magazine, 25 Jan. 2024
Mason Natural, Probiotic Acidophilus with Pectin Mason Natural Probiotic Acidophilus with Pectin supplement comes in 100-capsule packages with gelatin, magnesium stearate and silica as the main ingredients.
—Amber Smith, Discover Magazine, 6 Jan. 2024
But all of those use sol-gel processes involving different organic mixtures loaded with silica nanoparticles.
—Jennifer Ouellette, Ars Technica, 7 July 2023
Yee found that the same proton pump also helps diatoms make their tough silica shell.
—Kevin Hartnett, Quanta Magazine, 6 July 2023
On Whitehaven Beach, the pure white, silica sand, and emerald waters create a gorgeous palate of colors that is a feast for the senses.
—Andrea Romano, Travel + Leisure, 20 June 2023
Buy Now on Sephora: $20 Hiki Anti-Sweat Powder Generously sprinkle some of this powder (corn starch, silica, kaolin) in your drawers for a tingly-fresh feeling—and one that prevents you from having to sit in your own swampy filth all day, in addition to preventing chafing.
—Adam Hurly, Robb Report, 31 May 2023
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'silica.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near silica
Cite this Entry
“Silica.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/silica. Accessed 4 May. 2024.
Copy CitationKids Definition
silica
noun
sil·i·ca
ˈsil-i-kə 
: a compound that consists of the dioxide of silicon and occurs in various forms (as in quartz, opal, and sand)
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