radio brightness - the strength of a radio wave picked up by a radio telescope

magnitude - the property of relative size or extent; "they tried to predict the magnitude of the explosion"

threshold level - the intensity level that is just barely perceptible

field intensity, field strength - the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field

candlepower, light intensity - luminous intensity measured in candelas

acoustic power, sound pressure level - the physical intensity of sound

half-intensity - half the maximum intensity

forcefulness, strength, force - physical energy or intensity; "he hit with all the force he could muster"; "it was destroyed by the strength of the gale"; "a government has not the vitality and forcefulness of a living man"

severity, badness - used of the degree of something undesirable e.g. pain or weather

vehemence, emphasis - intensity or forcefulness of expression; "the vehemence of his denial"; "his emphasis on civil rights"

top - the greatest possible intensity; "he screamed at the top of his lungs"

ferocity, fierceness, furiousness, vehemence, violence, wildness, fury - the property of being wild or turbulent; "the storm's violence"

degree, level, grade - a position on a scale of intensity or amount or quality; "a moderate degree of intelligence"; "a high level of care is required"; "it is all a matter of degree"

sound property - an attribute of sound

crescendo - (music) a gradual increase in loudness

fortissimo, forte - (music) with great loudness

chromatic color, chromatic colour, spectral color, spectral colour - a color that has hue

color property - an attribute of color