yəˈranəˌfān noun
( -s )
Etymology: German uranophan, from uran- (II) + -phan -phane
: a mineral Ca(UO 2 ) 2 Si 2 O 7 .6H 2 O that is a hydrous uranium calcium silicate, occurs in yellow fibrous masses, and is possibly identical with uranotil (sp. gr. 3.81-3.90)