Obs. [f. Gr. ἀμφί both + τύπος a stamp.] A photographic process, producing both negative and positive portraits at once.
1844. Hunt, Man. Photogr., 64. Sir John Herschel, at the meeting of the British Association at York … says … ‘I have designated the process thus generally sketched out, by the term “Amphitype”; a name suggested by Mr. Talbot.’
