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]

The Collaborative International Dictionary of English v.0.48:

Daguerreotype \Da*guerre"o*type\ (d[.a]*g[e^]r"[-o]*t[imac]p),
   v. t. [imp. & p. p. Daguerreotyped (-t[imac]pt); p. pr. &
   vb. n. Daguerreotyping (-t[imac]`p[i^]ng).]
   1. To produce or represent by the daguerreotype process, as a
      picture.
      [1913 Webster]

   2. To impress with great distinctness; to imprint; to imitate
      exactly. Daguerreotyper

WordNet (r) 3.0 (2006):

daguerreotype
    n 1: a photograph made by an early photographic process; the
         image was produced on a silver plate sensitized to iodine
         and developed in mercury vapor