OLYMPIC GAMES; OLYMPIAN GAMES n.
A modified revival of the ancient Olympian games, consisting of international athletic games, races, etc., now held once in four years, the first having been at Athens in 1896.
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…