Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of spectrum is as below...

Spectrophotometer :: Spectrophotometer (n.) An instrument for measuring or comparing the intensites of the colors of the spectrum.

Scandium :: Scandium (n.) A rare metallic element of the boron group, whose existence was predicted under the provisional name ekaboron by means of the periodic law, and subsequently discovered by spectrum analysis in certain rare Scandinavian minerals (euxenite and gadolinite). It has not yet been isolated. Symbol Sc. Atomic weight 44..

Spectrum :: Spectrum (n.) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed or studied either as spread out on a screen, by direct vision, by photography, or otherwise. See Illust. of Light, and Spectroscope..

Yellow :: Yellow (n.) A bright golden color, reflecting more light than any other except white; the color of that part of the spectrum which is between the orange and green..

Gadolinium :: Gadolinium (n.) A supposed rare metallic element, with a characteristic spectrum, found associated with yttrium and other rare metals. Its individuality and properties have not yet been determined..

Vampire :: Vampire (n.) Any one of several species of harmless tropical American bats of the genus Vampyrus, especially V. spectrum. These bats feed upon insects and fruit, but were formerly erroneously supposed to suck the blood of man and animals. Called also false vampire..

Rainbow :: Rainbow (n.) A bow or arch exhibiting, in concentric bands, the several colors of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain..

Ultrared :: Ultrared (a.) Situated beyond or below the red rays; as, the ultrated rays of the spectrum, which are less refrangible than the red..

Caesium :: Caesium (n.) A rare alkaline metal found in mineral water; -- so called from the two characteristic blue lines in its spectrum. It was the first element discovered by spectrum analysis, and is the most strongly basic and electro-positive substance known. Symbol Cs. Atomic weight 132.6..

Aberration :: Aberration (n.) The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; called spherical aberration, when due to the spherical form of the lens or mirror, such form giving different foci for central and marginal rays; and chromatic aberration, when due to different refrangibilities of the colored rays of the spectrum, those of each color having a distinct focus..

White :: White (superl.) Reflecting to the eye all the rays of the spectrum combined; not tinted with any of the proper colors or their mixtures; having the color of pure snow; snowy; -- the opposite of black or dark; as, white paper; a white skin..

Fraunhofer Lines :: Fraunhofer lines () The lines of the spectrun; especially and properly, the dark lines of the solar spectrum, so called because first accurately observed and interpreted by Fraunhofer, a German physicist..

Ray :: Ray (n.) One of the component elements of the total radiation from a body; any definite or limited portion of the spectrum; as, the red ray; the violet ray. See Illust. under Light..

Spectrum :: Spectrum (n.) An apparition; a specter.

Bolometer :: Bolometer (n.) An instrument for measuring minute quantities of radiant heat, especially in different parts of the spectrum; -- called also actinic balance, thermic balance..

Microspectroscope :: Microspectroscope (n.) A spectroscope arranged for attachment to a microscope, for observation of the spectrum of light from minute portions of any substance..

Fluted :: Fluted (a.) Decorated with flutes; channeled; grooved; as, a fluted column; a fluted ruffle; a fluted spectrum..

Yellow :: Yellow (superl.) Being of a bright saffronlike color; of the color of gold or brass; having the hue of that part of the rainbow, or of the solar spectrum, which is between the orange and the green..

Indium :: Indium (n.) A rare metallic element, discovered in certain ores of zinc, by means of its characteristic spectrum of two indigo blue lines; hence, its name. In appearance it resembles zinc, being white or lead gray, soft, malleable and easily fusible, but in its chemical relation it resembles aluminium or gallium. Symbol In. Atomic weight, 113.4..

Green :: Green (superl.) Having the color of grass when fresh and growing; resembling that color of the solar spectrum which is between the yellow and the blue; verdant; emerald.

Random Fonts

Most Popular