Also known as: TH., TH-
TH has various meanings in the Scientific & Educational category. Discover the full forms, definitions, and usage contexts of TH in Scientific & Educational.
An element that is a byproduct of the decay of uranium. Symbol:"Th" Atomic Number:"90" Atomic Mass: 231.04amu. This is one of the elements in the actinide series of inner transition elements. It may also be classified as a rare earth element. A very radioactive element that is used in reactors and in the process of making certain types of gas. One of the byproducts of the combustion of thorium is radium.
Scientific & EducationalThe "heading" refers to the direction an aircraft is pointing. For a Magnetic Heading, this is in relation to Magnetic North. For a True Heading, this is in relation to True North.
Scientific & EducationalLast updated: