D defs.my
Entry 1 sense Webster, 1913

paraformaldehyde

· par·a·form·al·de·hyde · IPA
01 n. A polymer of formaldehyde obtained as a white crystalline substance by concentration of a formaldehyde solution. Formula (CH20)n. It diss…
  1. 1.
    A polymer of formaldehyde obtained as a white crystalline substance by concentration of a formaldehyde solution. Formula (CH20)n. It dissolves in hot water with the release of formaldehyde, and is used as a disinfectant.(Chem.)