from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A gray mineral, essentially PbS, the principal ore of lead.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mineral, lead sulphide (PbS), used as an ore for lead.
from the GNU version of the Collaborative International Dictionary of English
- n. A remedy or antidote for poison; theriaca.
- n. Lead sulphide; the principal ore of lead. It is of a bluish gray color and metallic luster, and is cubic in crystallization and cleavage.
from The Century Dictionary and Cyclopedia
- n. A remedy or antidote for poison; theriaca. See theriac.
- n. Native lead sulphid.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. soft blue-grey mineral; lead sulfide; a major source of lead
a saddle of mutton; second course, a fowl they call galena at head, and a capon larger than some of our Irish turkeys, at foot; third course, four different sorts of ices, pine-apple, grape, raspberry, and a fourth; in each remove there were I think fourteen dishes.
The tablets, he discovered, were made of Tunisian lead, suggesting that the Romans were mining a lead ore known as galena in the African colony.
There's Jeff Bezos on the right and Paul Saville on the left looking for galena, which is the lead-silver thing.
Clever though they were, they only knew lead when it occurred in the form known as galena, which looked like lead itself, and so they threw out a more valuable ore, cerusite, or lead carbonate, and the heaps of this valuable material were mined over a second time in comparatively recent times.
~ Lead is found in nature chiefly as the sulphide (PbS), called galena; to a much smaller extent it occurs as carbonate, sulphate, chromate, and in a few other forms.
Silver is found in the ores of other metals, such as fahlerz, which sometimes contains from two to ten per cent. of the metal, and galena, which is an important source of it; in fact, galena is never found entirely free from silver.
The fowls are flamingos, great curlews, and guinea-hens, which the natives of those islands call galena pintata, or the painted hen; but in Jamaica, where I have seen also those birds in the dry savannahs and woods (for they love to run about in such places) they are called guinea-hens.
The machinery is long gone and water mint, butterwort, dragonflies and frogs flourish in the fenny pools where grey crystals of galena were separated from the spoil, but the shells of the buildings remain.
Several hours later Kellogg found the animal standing next to a large outcropping of galena, a lead ore mineral that contains significant deposits of silver.
Virtually all our lead is mined as some kind of lead ore (e.g. galena) and refined.