Definition of palygorskite in US English:

palygorskite

(also paligorskite)

noun

Mineralogy
  • A silicate of magnesium and aluminium that occurs as soft, light-coloured, fibrous layers, and has a structure based on silica tetrahedra arranged in double chains.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From Palygorsk, the name of a locality by the Popovka river in Ukraine + -ite, after German Paligorskit.

Pronunciation

palygorskite

/ˌpalɪˈɡɔːskʌɪt/