Talk:protometal

"protometals" in Webster 1913
This term from Webster 1913 seems to be an old chemical/physical term that never caught on, judging by the paucity of results in a Google Books search. Here it is, just in case. Equinox ◑ 04:29, 6 April 2015 (UTC)


 * protometals, 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, protochromium, protocopper, protonickel, protosilicon, protostrontium, prototitanium, protovanadium. &mdash; protometallic, adj.