\spˈɛktɹə͡ʊ], \spˈɛktɹəʊ], \s_p_ˈɛ_k_t_ɹ_əʊ]\
Definitions of SPECTRO
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in comb. = SPECTRUM, as: -graph, apparatus for photographing or otherwise reproducing the spectrum, -gram, representation obtained by this, so -graphic a., -graphy n.; -logy, science of spectral analysis, so -logical (ly) a. & adv.; -meter, instrument for measuring deviation of light-rays in passing through prism; -phone, modification of spectroscope in which succession of sounds takes the place of observation by eye.
By Sir Augustus Henry