noun Etymology: part translation of German Pechblende, from Pech pitch + Blende blende Date: 1770 a brown to black mineral that consists of massive uraninite, has a distinctive luster, contains radium, and is the chief ore-mineral source of uranium
PITCHBLENDE
Meaning of PITCHBLENDE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012