polyoxymethylene

== English == === Etymology === From poly- + oxy- + methylene. === Noun === polyoxymethylene (countable and uncountable, plural polyoxymethylenes) (chemistry) A polymer of formaldehyde having a repeat unit of -CH2-O- ; it is used in engineering to make small gears etc ==== Synonyms ==== polyacetal polyformaldehyde ==== Translations ====