The Collaborative International Dictionary
Chemitype
Chemitype \Chem"i*type\, n. [Chemical + -type.] (Engraving) One of a number of processes by which an impression from an engraved plate is obtained in relief, to be used for printing on an ordinary printing press.
Wiktionary
chemitype
n. (context dated English) Any of a number of processes by which an impression from an engraved plate is obtained in relief, to be used for printing on an ordinary printing press.