OTTO CYCLE n.
A four-stroke cycle for internal-combustion engines consisting of the following operations: First stroke, suction into cylinder of explosive charge, as of gas and air; second stroke, compression, ignition, and explosion of this charge; third stroke (the working stroke), expansion of the gases; fourth stroke, expulsion…
SELF-STARTER n.
ated by electricity, compressed air, a spring, or an explosive gas), attached to an internal- combustion engine, as on an automobile, and used as a means of starting the engine without cranking it by hand.
SHAMANISM n.
The type of religion which once prevalied among all the Ural- Altaic peoples (Tungusic, Mongol, and Turkish), and which still survives in various parts of Northern Asia. The Shaman, or wizard priest, deals with good as well as with evil spirits, especially the good spirits of ancestors. Encyc. Brit.…