chalco-, chalc- (Greek: copper; brass).
A small wasp with bright metallic (copper) coloration whose larvae are often parasites of other insects in various states of life.
A family of flies; so called from their copperlike color.
A gray to black brittle copper sulfide (Cu2S) that is an important ore of copper.
In inorganic chemistry, a term for any of the elements that are part of Group VIB of the periodic table: oxygen, sulfur, selenium, tellurium, or polonium.
In inorganic chemistry, a compound made up of a chalcogen (oxygen, sulfur, selenium, tellurium, or polonium) and a more electropositive element.
The act of engraving on copper or brass.
Someone one who engraves on copper or brass.
Belonging or relating to the transitional period between the Neolithic and Bronze ages, beginning around 400 B.C., when the use of copper became more prevalent.
In geochemistry, an element having a strong affinity for sulfur, and therefore tending to be more abundant in sulfide minerals and ores than in other types of rock.
An important copper mineral found in medium- to high-temperature sulfide ore deposits; a brassy yellow sulfide (CuFeS2) of copper and iron that is the commonest ore of copper.
1. Chronic copper poisoning; also, chalcitis, chalkitis [inflammation of the eyes caused by rubbing the eyes after the hands have been used on brass].
2. The presence of copper deposits in the tissues.
3. A deposit of copper particles in the lungs or in other tissues.
An antimony copper sulfide.