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inging of bells, in populous cities, hath dissipated pestilent air; which may be from the concussion of the air. Bacon.

The sound produced by a sudden concussion.

The head of a buffer, which recieves the concussion, in railroad carriages.

A concussion or shock produced by a blow or other injury, in a part or region opposite to that at which the blow is received, often causing rupture or disorganisation of the parts affected.

A shaking, trembling, or concussion of the earth, due to subterranean causes, often accompanied by a rumbling noise. The wave of shock sometimes traverses half a hemisphere, destroying cities and many thousand lives; -- called also earthdin, earthquave, and earthshock. Earthquake alarm, a bell signal constructed to ope…

iting accumulated polar tension when the circuit is broken; and by producing heat, light, concussion, and often chemical changes when the circuit passes between the poles or through any imperfectly conducting substance or space. It is generally brought into action by any disturbance of molecular equilibrium, whether fr…

for action are then brought into contact, and uniting chemically, produce explosion. -- Concussion fuze, a fuze ignited by the striking of the projectile. -- Electric fuze, a fuze which is ignited by heat or a spark produced by an electric current. -- Friction fuze, a fuze which is ignited by the heat evolved by fr…

as a try cock for ascertaining the height of the water level in a steam boiler. -- Gauge concussion (Railroads), the jar caused by a car-wheel flange striking the edge of the rail. -- Gauge glass, a glass tube for a water gauge. -- Gauge lathe, an automatic lathe for turning a round object having an irregular profil…

The crash or concussion attending the breaking up of masses of ice, -- often due to contraction from extreme cold.

he end. -- To see stars, to see flashes of light, like stars; -- sometimes the result of concussion of the head. [Colloq.] -- To see (one) through, to help, watch, or guard (one) to the end of a course or an undertaking.

An instrument for measuring the direction, duration, and force of earthquakes and like concussions.

h is the effect of a blow, collision, or violent impulse; a blow, impact, or collision; a concussion; a sudden violent impulse or onset. These strong, unshaken mounds resist the shocks Of tides and seas tempestuous. Blackmore. He stood the shock of a whole host of foes. Addison.

A shock; a jog; a violent concussion or impulse. [R. or Scot.]

link (Mach.), a connecting link so arranged as to allow some play of the parts, to avoid concussion. -- Slip rope (Naut.), a rope by which a cable is secured preparatory to slipping. Totten. -- Slip stopper (Naut.), an arrangement for letting go the anchor suddenly.

air, used for various mechanical purposes, as receiving and imparting power, diminishing concussion, regulating motion, measuring weight or other force.

A concussion, or blow, made by water in striking, as against the sides of a pipe or vessel containing it.