D defs.my
Entry 1 sense Webster, 1913

Hectograph

/hĕk'-təg-răfˌ/ · Hec·to·graph · IPA /hˈɛktəɡrˌæf/
01 n. A contrivance for multiple copying, by means of a surface of gelatin softened with glycerin.
  1. 1.
    A contrivance for multiple copying, by means of a surface of gelatin softened with glycerin.