nukleaarne

Nukleaarne is an Estonian adjective meaning related to the nucleus of an atom or to atomic nuclei. In scientific and technical usage it describes phenomena, materials, and technologies connected with nuclear theory, reactions, or energy. The term is used across fields such as nuclear physics, nuclear engineering, and nuclear medicine, and it appears in both descriptive and evaluative contexts.

In science, core concepts include the structure of the atomic nucleus, nuclear reactions such as fission and fusion, and the release or absorption of nuclear energy. Nuclear processes are governed by fundamental forces and conservation laws, and they can occur spontaneously, be induced, or be harnessed for practical purposes.

Applications span energy generation, medicine, industry, and research. Nuclear energy is produced in reactors where controlled fission heats a coolant to generate electricity. Radioactive isotopes are used in diagnostics and treatment; irradiation and radiography serve industrial and scientific needs.

Safety and policy are central to nuclear topics. Radiation protection, containment, waste management, and environmental monitoring seek to minimize risks to people and ecosystems. International agreements address nonproliferation, transport, and verification of compliance.

See also: Nuclear physics, Nuclear energy, Nuclear medicine, Radiation protection.