[f. prec. + -GRAM.] A photograph of a spectrum.
1892. Pall Mall Gaz., 17 Feb., 7/2. The spectrograms of the star show two spectra, one above the other.
1900. Edinb. Rev., April, 474. There must be a suspension of judgement in the matter until spectrograms of nebular nuclei can be produced in evidence.
