Definition of picotite in US English:

picotite

noun

Mineralogy
  • A black mineral of the spinel group that is an oxide of ferrous iron and chromium and belongs to the cubic crystal system.

Origin

Early 19th century. From French picotite from the name of Picot, Baron de la Peyrouse, French naturalist, who described the mineral + -ite.

Pronunciation

picotite

/ˈpɪkətʌɪt/