Search the Dictionary

r 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 id…

Of or pertaining to thermolysis.

To subject to thermolysis; to dissociate by heat.

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

An involuntary trembling, sometimes an effect of paralysis, but usually caused by terror or fear; quaking; quivering.

A complex sugar, as raffinose, yielding by hydrolysis three simple sugar molecules.

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…

r process of whipping or stinging with nettles; -- sometimes used in the treatment of paralysis.

ual 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 joining i…

Of or pertaining to the measurement of volume. Volumetric analysis (Chem.), that system of the quantitative analysis of solutions which employs definite volumes of standardized solutions of reagents, as measured by burettes, pipettes, etc.; also, the analysis of gases by volume, as by the eudiometer.…

us disease by suddenly bending the hand back upon the forearm. -- Wrist drop (Med.), paralysis of the extensor muscles of the hand, affecting the hand so that when an attempt is made to hold it out in line with the forearm with the palm down, the hand drops. It is chiefly due to plumbism. Called also hand drop. -- Wr…

mmy substance of the pentosan class, present in woody tissue, and yielding xylose on hydrolysis; wood gum.

An unfermentable sugar of the pentose class, C5H10O5, formed by the hydrolysis of xylan; wood sugar.