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
a device for showing the operating condition of some system
a signal for attracting attention
(chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction
the act of systematically moving a finely focused beam of light or electrons over a surface in order to produce an image of it for analysis or transmission
the process of translating photographs into a digital form that can be recognized by a computer
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
a familiar name for a person (often a shortened version of a person's given name); "Joe's mother would not use his nickname and always called him Joseph"; "Henry's nickname was Slim"
a descriptive name for a place or thing; "the nickname for the U.S. Constitution is `Old Ironsides'"
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"
small and delicate; "she was an elfin creature--graceful and delicate"; "obsessed by things elfin and small"
suggestive of an elf in strangeness and otherworldliness; "thunderbolts quivered with elfin flares of heat lightning"; "the fey quality was there, the ability to see the moon at midday"- John Mason Brown
usually good-naturedly mischievous; "perpetrated a practical joke with elfin delight"; "elvish tricks"
relating to or made or done by or as if by an elf; "elfin bells"; "all the little creatures joined in the elfin dance"
very small; "diminutive in stature"; "a lilliputian chest of drawers"; "her petite figure"; "tiny feet"; "the flyspeck nation of Bahrain moved toward democracy"
the category of nouns serving as the grammatical subject of a verb
named; bearing the name of a specific person; "nominative shares of stock"
serving as or indicating the subject of a verb and words identified with the subject of a copular verb; "nominative noun endings"; "predicate nominative"
unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food