He″li‐o‐ty′py (?), n. A method of transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography.
Content
Rights and sources
Review source, license and attribution information for this content.
Content
Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.