protosulphide

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protosulphide
ˌprotoˈsulphide Chem. [proto- 3.] A compound of sulphur with another element or radical containing the minimum proportion of sulphur. Formerly also called protoˈsulphuret. (Now usually otherwise expressed: as protosulphide or proto-sulphuret of iron = ferrous sulphide, FeS.) So † protoˈsulphate, a s... Oxford English Dictionary
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covellite
covelline, covellite Min. (kəʊˈvɛlaɪn, -aɪt) [Named after Covelli, an Italian mineralogist who found the mineral in the lava of Vesuvius: see -ine, -ite.] A native indigo-blue sulphide of copper; often called blue or indigo copper.1850 Dana Min. 510 Covelline. 1868 Ibid. 84 Covellite is the result o... Oxford English Dictionary
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proto-
proto- (prəʊtəʊ) before a vowel or h properly prot- (prəʊt), or with h (prəʊθ), repr. Gr. πρωτο-, combining form of πρῶτος first, which became πρωτ- before a simple, and πρωθ- before an aspirated vowel. In compounds already used in Greek, and many of later formation, the Greek practice (represented ... Oxford English Dictionary
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liver
▪ I. liver, n.1 (ˈlɪvə(r)) Forms: 1 lifer, 3–4 livre, 3–5 livere, lyvre, 4 lyvour, 4–5 lyvere, 4–6 lyver, 5 levir, -yr, lyffere, lyvir, -yr, lywer, 5–6 lever, 6 Sc. liffyr, luffer, 7 livour, 1, 4– liver. [OE. lifer fem. = MDu. lēver, lēvere (Du. lever), OHG. libara, lebara, lebera, lepera (MHG. lebe... Oxford English Dictionary
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