thorite

[θɔːraɪt]

Definitions

1. noun

A rare earth mineral, a radioactive isomorph of thallium sesquioxide.

“The geologist studied the properties of thorite found in the ore samples.”

2. proper noun

A lunar crater, approximately 74 km in diameter, located on the Moon’s surface.

“The astronauts navigated through the rugged terrain of the thorite crater.”

Synonyms

  • rare earth mineral
  • thallium oxide

Antonyms

  • common earth element
  • non-radioactive compound