methyl methacrylate

American  

noun

Chemistry.

1. a colorless, volatile, flammable, water-insoluble, liquid, unsaturated ester, C 5 H 8 O 2 , that polymerizes readily to a clear plastic.

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methyl methacrylate British  

noun

1. a colourless liquid compound, used in the manufacture of certain methacrylate resins. Formula: CH 2 C(CH 3 )COOCH 3

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Etymology

Origin of methyl methacrylate

First recorded in 1930–35

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Example Sentences

See Examples For:

methyl methacrylate

Specifically, officials are searching for any trace of methyl methacrylate, or MMA.

From Los Angeles Times ● Jun. 6, 2026

The tank contained 7,000 gallons of the highly reactive liquid chemical known as methyl methacrylate, or MMA, which can be used to make materials such as Plexiglass.

From Los Angeles Times ● Jun. 4, 2026

The EPA says methyl methacrylate is irritating to the skin, eyes, and mucous membranes in humans.

From Barron's ● May 24, 2026

The tank contains a toxic chemical known as methyl methacrylate, or MMA, which makes acrylic plastics and can cause eye, skin and breathing issues, according to the U.S.

From The Wall Street Journal ● May 24, 2026

The tank contains methyl methacrylate, a toxic chemical used to make plastic that can cause eye, skin and breathing issues, according to the U.S.

From The Wall Street Journal ● May 23, 2026

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