Категория noun.phenomenon

the force by which one object attracts anotherattraction; attractive force;
(immunology) the attraction between an antigen and an antibodyaffinity;
the force by which bodies repel one anotherrepulsion; repulsive force;
the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipseaureole; corona;
an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of forceaurora;
the aurora of the southern hemisphereaurora australis; southern lights;
the aurora of the northern hemisphereaurora borealis; northern lights;
self-induced fluorescenceautofluorescence;
an unpredictable outcome that is unfortunatebad luck; mischance; mishap;
a column of light (as from a beacon)beam; beam of light; irradiation; light beam; ray; ray of light; shaft; shaft of light;
a group of nearly parallel lines of electromagnetic radiationbeam; electron beam; ray;
a beam of electrons emitted by the cathode of an electrical discharge tubecathode ray;
radiation of beta particles during radioactive decaybeta radiation; beta ray; electron radiation;
the normal brainwave in the encephalogram of a person who is awake and alert; occurs with a frequency between 12 and 30 hertzbeta rhythm; beta wave;
the energy required to separate particles from a molecule or atom or nucleus; equals the mass defectbinding energy; separation energy;
electric phenomena in animals or plantsbioelectricity;
a dry cold north wind in southeastern Francebise; bize;
the pressure exerted by the atmosphereair pressure; atmospheric pressure; pressure;
the electromagnetic radiation that would be radiated from an ideal black body; the distribution of energy in the radiated spectrum of a black body depends only on temperature and is determined by Planck's radiation lawblack-body radiation; blackbody radiation;
the pressure of the circulating blood against the walls of the blood vessels; results from the systole of the left ventricle of the heart; sometimes measured for a quick evaluation of a person's healthblood pressure;