Definition of nenadkevite in US English:

nenadkevite

noun

Mineralogy
  • A substance originally identified as a mineral consisting of a hydrated basic silicate of uranium and other elements, but now recognized as a mixture of minerals.

Origin

1950s. From Russian nenadkevit from nenadkev- + -it.

Pronunciation

nenadkevite

/nɛˈnadkəvʌɪt/