hec·to·graph 
(hĕktə-grăf′)
(hĕktə-grăf′)n.
A machine employing a glycerin-coated layer of gelatin in order to make copies of typed or written material.
tr.v. hec·to·graphed, hec·to·graph·ing, hec·to·graphs
To copy by means of a hectograph.
hec′to·graphic adj.
hec′to·graphi·cal·ly adv.