English dictionary

Yyayeyiyoytyu

ytterbium |ɪˈtɜːrbiəm| — a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime

yttrium |ˈɪtriəm| — a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys