Lexic.us

Definition of Uraninite

1. Noun. A mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore.

Definition of Uraninite

1. n. A mineral consisting chiefly of uranium oxide with some lead, thorium, etc., occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende.

2. n. A mineral consisting chiefly of uranium oxide with some lead, thorium, etc., occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende.

Definition of Uraninite

1. Noun. (minerology) Any of several brownish-black forms of uranium dioxide, UO₂, (especially pitchblende) that is the chief ore of uranium; it is isomorphous with thorianite. ¹

¹ Source: wiktionary.com

Definition of Uraninite

1. [n -S]

Medical Definition of Uraninite

1. A mineral consisting chiefly of uranium oxide with some lead, thorium, etc, occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende. Source: Websters Dictionary (01 Mar 1998)

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