(physics) Synonym of nuclear fission

(physics) Synonym of nuclear fusion

(logic) A logical proposition that cannot be derived from other logical propositions by a Boolean operation.

(colour) A light orange colour.

A psychotherapeutic diagram presenting individuals as nodes (with the patient at the centre) connected by lines indicating their relationships.

The exposure of plants to radioactive sources, typically cobalt-60, in order to generate mutations that may prove to have useful properties.

(physics) The ratio of the average mass per atom of the naturally occurring form of an element to 1/12 of the mass of a carbon-12 atom. Symbol Aᵣ; abbreviation RAM or r.a.m. For elements with several isotopes, the most stable isotope is treated as the representative.

(chemistry) A unit of mass equal to 1/12 the mass of an atom of the ¹²C isotope of carbon.

The weighted average of the atomic masses of the naturally occurring isotopes of an element.

The science and technology associated with the design and use of atomic force microscopes