: a transparent acrylic plastic often used in place of glass

Examples of plexiglass in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The nuclear fireball was actually a backlit, 8-foot plexiglass column. ArsTechnica, 28 Aug. 2026 Drummer Mike Palmer will sit inside a massive plexiglass and aluminum enclosure that resembles a spaceship. Patrick Connolly, The Orlando Sentinel, 26 Aug. 2026 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 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 29 Aug. 2026.

Kids Definition

plexiglass

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