acetal noun. ['asɪtal] M19.
[from ACET(IC + -AL².]
Chemistry.
1. An odoriferous liquid, CH₃CH(OC₂H₅)₂, formed by reaction of acetaldehyde and ethyl alcohol. Also, any other compound with one hydrogen atom and two alkoxy groups attached to the same carbon atom. Also gen. = KETAL. M19.

2. = POLYOXYMETHYLENE. M20.

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