thorium

Definitions

General Science

• noun a natural radioactive element which decomposes to radioactive radon gas

Electronics

• A lustrous silver-white radioactive metallic element whose atomic number is 90. It is soft, ductile, and can be extruded, drawn, and welded. It has about 30 known isotopes, all unstable. It is used, for instance, as a nuclear fuel, in lamps, lasers, semiconductors, and in photoelectric devices. Its chemical symbol is Th.
• chemical symbolTh

Information & Library Science

• abbreviation in Internet addresses, the top-level domain for Thailand

Nearby Definitions of “thorium”

• Thomson bridge
• Thomson effect
• thong
• Thoracic Surgery
• thorax
• thorium
• thorium oxide
• thorn
• Thorne-Zytkow Object
• Thornton Wilder
• thorough

Contexts for “thorium”

4 definitions in context
• General Science
• Electronics
• Information & Library Science