flywheel

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noun fly·wheel \-ˌhwēl, -ˌwēl\

: a heavy wheel that is part of a machine and that controls the speed of machinery

Full Definition of FLYWHEEL

:  a heavy wheel for opposing and moderating by its inertia any fluctuation of speed in the machinery with which it revolves; also :  a similar wheel used for storing kinetic energy (as for motive power)

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First Known Use of FLYWHEEL

1784

Rhymes with FLYWHEEL

aiguille, all-wheel, anneal, appeal, big deal, big wheel, bilge keel, bonemeal, bonspiel, cam wheel, Castile, cartwheel, chainwheel, chenille, cogwheel, conceal, congeal, cornmeal, done deal, eared seal, enwheel, fifth wheel, fish meal, forefeel, for real, four-wheel, freewheel, fur seal, genteel, get real, good deal, great seal, handwheel, harp seal, ideal, inchmeal, mild steel, mill wheel, misdeal, mobile, Mobile, monk seal, mouthfeel, New Deal, newsreel, nosewheel, oatmeal, O'Neal, pastille, piecemeal, pinwheel, prayer wheel, raw deal, repeal, reveal, schlemiel, self-heal, side-wheel, singspiel, somedeal, spike heel, stabile, tahsil, Tar Heel, thumbwheel, unreel, unseal, worm wheel