Definition of nenadkevichite in US English:

nenadkevichite

noun

Mineralogy
  • An orthorhombic hydrated silicate of sodium, calcium, niobium, and titanium, (Na,Ca)(Nb,Ti)Si₂O₇·2H₂O, which occurs as pale yellow crystals.

Origin

1950s; earliest use found in Mineralogical Abstracts. From Russian nenadkevičit from the name of Konstantin Avtonomovič Nenadkevič, Russian mineralogist and geochemist + -it.

Pronunciation

nenadkevichite

/nɛˈnadkəvɪtʃʌɪt/