acetal resin

noun

: polyoxymethylene

Other outlets for methanol are still sluggish. Acetal resins, for example, are used in a variety of consumer hard goods that are now moving slowly.

—Chemical Week, 25 June 1975

Word History

First Known Use

1939, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now