from
The Collaborative International Dictionary of English v.0.48
Daguerreotype \Da*guerre"o*type\ (d[.a]*g[e^]r"[-o]*t[imac]p),
n. [From Daguerre the inventor + -type.]
1. 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.
[1913 Webster]
2. The process of taking such pictures.
[1913 Webster]