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borosilicate

American  
[bawr-uh-sil-i-kit, -keyt, bohr-] / ˌbɔr əˈsɪl ɪ kɪt, -ˌkeɪt, ˌboʊr- /

noun

Chemistry.
  1. a salt of boric and silicic acids.


borosilicate British  
/ ˌbɔːrəʊˈsɪlɪkɪt, -ˌkeɪt /

noun

  1. a salt of boric and silicic acids

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of borosilicate

First recorded in 1810–20; boro- + silicate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Researchers from the University of Padua, Politecnico di Milano, and the CNR Institute for Photonics and Nanotechnologies have demonstrated a new approach using an unexpected material: borosilicate glass.

From Science Daily • Mar. 24, 2026

This handmade glass candlestick made of colorful borosilicate glass is an elegant way to elevate the mood, on its own, or in pairs, illuminated by a candle or standing alone.

From Los Angeles Times • Dec. 1, 2022

Boric oxide is necessary for the production of heat-resistant borosilicate glass, like that shown in Figure 18.15 and certain optical glasses.

From Textbooks • Feb. 14, 2019

The Zyliss Fresh Glass Food Storage Containers are also made of borosilicate glass, but are more expensive than our current top pick.

From Slate • Sep. 7, 2018

It is essentially a basic aluminium borosilicate, belonging to the orthorhombic system; it occurs usually in fibrous forms, of smalt-blue, greenish-blue, lavender or almost black colour, and exhibits strong pleochroism.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" by Various

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