Категория noun.phenomenon

the force attracting atoms to each other and binding them together in a moleculeaffinity; chemical attraction;
a local region of low pressure or descending air that causes a plane to lose height suddenlyair hole; air pocket; pocket;
the flow of air that is driven backwards by an aircraft propellerairstream; backwash; race; slipstream; wash;
a relatively well-defined prevailing windairstream;
a fan-shaped deposit where a fast flowing stream flattens outalluvial cone; alluvial fan;
the radiation of alpha particles during radioactive decayalpha radiation; alpha ray;
the normal brainwave in the electroencephalogram of a person who is awake but relaxed; occurs with a frequency of 8-12 hertzalpha rhythm; alpha wave;
an electric current that reverses direction sinusoidallyac; alternating current; alternating electric current;
the alternation of two or more different forms in the life cycle of a plant or animalalternation of generations; heterogenesis; xenogenesis;
energy derived from sources that do not use up natural resources or harm the environmentalternative energy;
alternation of sexual and asexual generationsdigenesis; metagenesis;
the strength of an electrical current measured in amperesamperage;
an annual formation of wood in plants as they growannual ring; growth ring;
wind in the upper atmosphere blowing above but in the opposite direction from the trade windsantitrades;
an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving objectapparent motion; apparent movement; motion; movement;
a physical phenomenon associated with the production or transmission of soundacoustic phenomenon;
a physical phenomenon associated with the atmosphereatmospheric phenomenon;
the energy released by a nuclear reactionatomic energy; nuclear energy;
nuclear energy regarded as a source of electricity for the power grid (for civilian use)atomic power; nuclear power;
(physics) a spectrum of radiation caused by electron transitions within an atom; the series of spectrum lines is characteristic of the elementatomic spectrum;