There are many synonyms for the word "Albertype," a process of reproducing photographs from a matrix of hardened gelatin. Some of these synonyms include collotype, photogravure, and heliotype. Collotype is a photographic printing process that uses light-sensitive gelatin on a plate to create a detailed and continuous tone image. Photogravure is a technique that involves etching a printing plate using a photographic negative. The resulting image possesses a continuous tone and appears as a three-dimensional relief. Heliotype is a photomechanical printing technique that utilizes a photosensitive emulsion to print a photographic image. These various synonyms demonstrate the different processes used to create high-quality photographic prints.