: a transparent acrylic plastic often used in place of glass

Examples of plexiglass in a Sentence

Recent Examples on the Web
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Over the course of their incarceration, people detained there will never share a visiting room with their families and children, or even sit across from them behind a plexiglass barrier. Jillian Turanovic, The Conversation, 10 Aug. 2026 The winds were so strong, the theater's front plexiglass window was blown out. Charlie De Mar, CBS News, 31 July 2026 The report estimates about $100 in damage for the plexiglass. Laura Horne, Charlotte Observer, 14 July 2026 The drummer is encased in a prism of metal and plexiglass that moves throughout the concert, and Brooks will often perform from - or jump off - the structure. Heather Bushman, Oklahoman, 7 July 2026 See All Example Sentences for plexiglass

Word History

Etymology

alteration of Plexiglas

First Known Use

1935, in the meaning defined above

Time Traveler
The first known use of plexiglass was in 1935

Browse Nearby Words

Cite this Entry

“Plexiglass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plexiglass. Accessed 19 Aug. 2026.

Kids Definition

plexiglass

noun
: a transparent acrylic plastic often used in place of glass
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