FERROCYANIDE n.
d the basis of the ferric ferrocyanate, prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal matter containing nitrogen, as horn, leather, blood, etc., in iron pots.
FIGURATE a.
unterpoint or descant (Mus.), that which is not simple, or in which the parts do not move together tone for tone, but in which freer movement of one or more parts mingles passing discords with the harmony; -- called also figural, figurative, and figured counterpoint or descant (although the term figured is more commonl…
FLANGE n.
as that of pipes, where the connecting pieces have flanges by which the parts are bolted together. Knight. - Flange rail, a rail with a flange on one side, to keep wheels, etc. from running off. -- Flange turning, the process of forming a flange on a wrought iron plate by bending and hammering it wh…
FLUORESCEIN n.
A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin.…