heliotypy

from The Century Dictionary.

• noun A photographic process in which from an ordinary negative is made a positive of such character that from it a direct impression in ink can be obtained by means of a printing-press.

from the GNU version of the Collaborative International Dictionary of English.

• noun A method of transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A method of transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography.