combining form of COLLODION, as in collodio-chloride, etc. Collodiotype, a photograph obtained by the collodion process; also, the process itself.
1853. R. Hunt, Man. Photogr., 264. After coating the plate with collodio-iodide.
c. 1865. J. Wylde, in Circ. Sc., I. 159/2. The collodio-albumen process.
1865. Reader, No. 151. 578/3. The collodio-chloride process of Mr. Simpson.