LexBrew
Vol. 10 · Portmanteaus ·Early 20th century ·1935

Plexiglas

plexi- glass

Meaning
A transparent acrylic plastic used as a glass substitute.
Source words
plexi- + glass
Coined by
Röhm & Haas
Year
1935

Background

Trademarked by the German chemical company Röhm & Haas. *Plexi-* is from Greek *plexus* (network), referring to the polymer's long molecular chains. English usually spells it *Plexiglas* with one *s*; many speakers double it by analogy with *glass*.

Early 20th century

Industrialisation generated new things that needed new names, fast. Motoring, electricity, telecommunications, and urban pollution all produced portmanteaus within a generation of their arrival.

Two words, one coinage.

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