F n.
osely related to p,k,v, and b; as in E. five, Gr. f, L. lupus, Gr. fox, vixen ; fragile, break ; fruit, brook, v. t.; E. bear, L. ferre. See Guide to Pronunciation, sq. root 178, 179, 188, 198, 230.
FALLOW v.
To plow, harrow, and break up, as land, without seeding, for the purpose of destroying weeds and insects, and rendering it mellow; as, it is profitable to fallow cold, strong, clayey land.
FELDSPAR; FELDSPATH n.
one case, baryta. They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so. The colors are usually white or nearly white, flesh-red, bluish, or greenish.
FIRE n.
, as those of antimony, strontium, barium, etc. -- Fire alarm (a) A signal given on the breaking out of a fire. (b) An apparatus for giving such an alarm. -- Fire annihilator, a machine, device, or preparation to be kept at hand for extinguishing fire by smothering it with some incombustible vapor or gas, as carbonic…