Search the Dictionary

a substance, or gives it its essential properties, and which can usually be separated by analysis; -- applied especially to drugs, plant extracts, etc. Cathartine is the bitter, purgative principle of senna. Gregory. Bitter principle, Principle of contradiction, etc. See under Bitter, Contradiction, etc.…

rs." J. S. Harford. The proximate natural causes of it [the deluge]. T. Burnet. Proximate analysis (Chem.), an analysis which determines the proximate principles of any substance, as contrasted with an ultimate analysis. -- Proximate cause. (a) A cause which immediately precedes and produces the effect, as distinguish…

The science of blowpipe analysis.

ting to quality; having the character of quality. -- Qual"i*ta*tive*ly, adv. Qualitative analysis (Chem.), analysis which merely determines the constituents of a substance without any regard to the quantity of each ingredient; -- contrasted with quantitative analysis.

Relating to quantity. -- Quan"ti*ta*tive*ly, adv. Quantitative analysis (Chem.), analysis which determines the amount or quantity of each ingredient of a substance, by weight or by volume; -- contrasted with qualitative analysis.

ved as to greatly intensify a musical tone by its resonance. It is used for the study and analysis of complex sounds.

In the quaternion analysis, a quantity that has magnitude, but not direction; -- distinguished from a vector, which has both magnitude and direction.

ional 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

Chemical analysis.

Of or pertaining to the spectrum; made by the spectrum; as, spectral colors; spectral analysis. Spectral lemur. (Zoöl.) See Tarsius.

The science of spectrum analysis in any or all of its relations and applications.

An instrument constructed on the principle of the photophone and used in spectrum analysis as an adjunct to the spectroscope. -- Spec`tro*phon"ic (#), a.

ed room. It is characterized by numerous dark lines called Fraunhofer lines. -- Spectrum analysis, chemical analysis effected by comparison of the different relative positions and qualities of the fixed lines of spectra produced by flames in which different substances are burned or evaporated, each substance having it…

of the sphere, especially of the circles described on its surface. -- Spherical harmonic analysis. See under Harmonic, a. -- Spherical lune,portion of the surface of a sphere included between two great semicircles having a common diameter. -- Spherical opening, the magnitude of a solid angle. It is measured by the p…

a normal standard; to calculate or adjust the strength of, by means of, and for uses in, analysis.

se so subtly true. Pope. Subtly communicating itself to my sensibilities, but evading the analysis of my mind. Hawthorne.

t or process of making a compound by putting the ingredients together, as contrasted with analysis; thus, water is made by synthesis from hydrogen and oxygen; hence, specifically, the building up of complex compounds by special reactions, whereby their component radicals are so grouped that the resulting substances are…

ubstance, especially when so small that the amount is not quantitatively determined in an analysis;-hence, in stating an analysis, often contracted to tr.

Incapable of further analysis; incapable of further division or separation; constituent; elemental; as, an ultimate constituent of matter. Ultimate analysis (Chem.), organic analysis. See under Organic. -- Ultimate belief. See under Belief. -- Ultimate ratio (Math.), the limiting value of a ratio, or that toward whic…

irtual work. -- Virtual velocity (Mech.), a minute hypothetical displacement, assumed in analysis to facilitate the investigation of statical problems. With respect to any given force of a number of forces holding a material system in equilibrium, it is the projection, upon the direction of the force, of a line joinin…