rocking valve
noun
(on a steam engine) a valve mechanism oscillating through an arc to open and close.
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Why Is It Called “Rock n’ Roll”?Is “Rocket ‘88” by Jackie Brenston and his Delta Cats the very first rock and roll record? The question has inspired debate among musicologists for years. Another equally contentious question: Where does the term rock and roll come from? Rock is derived from the Old English roccain, related to the Old Nordic rykkja meaning, “to pull, tear, move.” The earliest recorded use of the term in …
Nearby words
rocking chair, rocking horse, rocking rhythm, rocking shear, rocking stone, rocking valve, rockingham, rockland, rockledge, rockling, rockne
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019