Definition of paratacamite in English:

paratacamite

noun

Mineralogy
  • A green to greenish-black mineral of the hexagonal system that consists of a basic chloride of copper, Cu₂(OH)₃Cl, and is found as a secondary deposit on other copper minerals.

Origin

Early 20th century; earliest use found in Nature: a weekly journal of science. From para- + atacamite: see quot. 1907, which reports a talk given in 1905.

Pronunciation

paratacamite

/ˌparətəˈkɑːmʌɪt/