protometals
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Protometals — Pro to*met als, n. pl. A finer form of metals, indicated by enhanced lines in their spark spectra (which are also observed in the spectra of some stars), obtained at the highest available laboratory temperatures ( Lockyer); as protocalcium,… … The Collaborative International Dictionary of English
Protometalic — Protometals Pro to*met als, n. pl. A finer form of metals, indicated by enhanced lines in their spark spectra (which are also observed in the spectra of some stars), obtained at the highest available laboratory temperatures ( Lockyer); as… … The Collaborative International Dictionary of English
