Expanding and contracting rhythmically as to the beating of the heart; SYN. pulsating, pulsing.

In a spark-ignition gasoline engine, a phenomenon that occurs when unburned fuel-air mixture explodes in the combustion chamber before being ignited by the spark. The resulting shock waves produce a metallic knocking sound. Loss of power occurs, which can be prevented by reducing the compression ratio, re-designing the geometry of the combustion chamber, or increasing the octane number of the gasoline (usually by the use of tetraethyl lead antiknock additives). + prikaži više

Involving percussion or featuring percussive instruments

Impressive; very noticeable

(British informal) Enormous.