an early variety of photograph, produced on a silver plate, or copper plate covered with silver, and rendered sensitive by the action of iodine, or iodine and bromine, on which, after exposure in the camera, the latent image is developed by the vapor of mercury.-the process of taking such pictures.-to produce or represent by the daguerreotype process, as a picture.-to impress with great distinctness; to imprint; to imitate exactly.