a cavity or passage in a tubular organ; "the lumen of the intestine"
a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin
examine eggs for freshness by holding them against a light
high level or degree; the property of being intense
the amount of energy transmitted (as by acoustic or electromagnetic radiation); "he adjusted the intensity of the sound"; "they measured the station's signal strength"
in constant change; "his opinions are in flux"; "the newness and flux of the computer industry"
a flow or discharge
a state of uncertainty about what should be done (usually following some important event) preceding the establishment of a new direction of action; "the flux following the death of the emperor"
excessive discharge of liquid from a cavity or organ (as in watery diarrhea)
a substance added to molten metals to bond with impurities that can then be readily removed
the rate of flow of energy or particles across a given surface