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that is fired by percussion upon fulminating powder. -- Percussion match, a match which ignites by percussion. -- Percussion powder, powder so composed as to ignite by slight percussion; fulminating powder. -- Percussion sieve, Percussion table, a machine for sorting ores by agitation in running water.…

agent, and is used in the composition of the friction surface on which safety matches are ignited. -- Solar phosphori (Chem.), phosphorescent substances which shine in the dark after exposure to the sunlight or other intense light.

and provided with a piston, for showing that the heat produced by compressing a gas will ignite substances. -- Pneumatic trough, a trough, generally made of wood or sheet metal, having a perforated shelf, and used, when filled with water or mercury, for collecting gases in chemical operations. -- Pneumatic tube. See…

er filled with a composition of niter, sulphur, and mealed powder, -- used principally to ignite the priming in proving guns, and as an incendiary material in shells.

cing; of or pertaining to pyrophorus. Pyrophoric iron (Chem.), finely reduced iron, which ignites spontaneously on contact with air.

Any one of several substances or mixtures which phosphoresce or ignite spontaneously on exposure to air, as a heated mixture of alum, potash, and charcoal, or a mixture of charcoal and finely divided lead.

at intervals, of brilliant balls or stars of fire which are thrown upward as they become ignited. -- Roman Catholic, of, pertaining to, or the religion of that church of which the pope is the spiritual head; as, a Roman Catholic priest; the Roman Catholic Church. -- Roman cement, a cement having the property of hard…

d break. -- Safety lamp. (Mining) See under Lamp. -- Safety match, a match which can be ignited only on a surface specially prepared for the purpose. -- Safety pin, a pin made in the form of a clasp, with a guard covering its point so that it will not prick the wearer. -- safety plug. See Fusible plug, under Fusibl…

various shapes, adapted for a mortar or a cannon, and containing an explosive substance, ignited with a fuse or by percussion, by means of which the projectile is burst and its fragments scattered. See Bomb.

A heap of damp combustibles partially ignited and burning slowly, placed on the windward side of a house, tent, or the like, in order, by the thick smoke, to keep off mosquitoes or other insects. [U. S.] Bartlett.

A small particle of fire or ignited substance which is emitted by a body in combustion. Man is born unto trouble, as hte sparks fly upward. Job v. 7.

To emit sparks; to throw off ignited or incandescent particles; to shine as if throwing off sparks; to emit flashes of light; to scintillate; to twinkle; as, the blazing wood sparkles; the stars sparkle. A mantelet upon his shoulder hanging Bretful of rubies red, as fire sparkling. Chaucer.

To cause to ignite; as, to strike a match.

to a bright reddish brown. -- Cologne, or German, umber, a brown pigment obtained from lignite. See Cologne earth.

ir, or chorus, of birds in the woods. [Poetic] Coleridge. -- Wood coal, charcoal; also, lignite, or brown coal. -- Wood cricket (Zoöl.), a small European cricket (Nemobius sylvestris). -- Wood culver (Zoöl.), the wood pigeon. -- Wood cut, an engraving on wood; also, a print from such an engraving. -- Wood dove (Zo…