rocker

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Related to rockers: Rockers Reggae

rocker

1. any of various devices that transmit or operate with a rocking motion
2. a steel tool with a curved toothed cage, used to roughen the copper plate in engraving a mezzotint
3. 
a. an ice skate with a curved blade
b. the curve itself
4. Skating
a. a figure consisting of three interconnecting circles
b. a half turn in which the skater turns through 180?, so facing about while continuing to move in the same direction

rocker

[′räk·ər]
(civil engineering)
A support at the end of a truss or girder which permits rotation and horizontal movement to allow for expansion and contraction.
(graphic arts)
A type of chisel, with a sharp beveled edge, used in mezzotint engraving; it is set on the surface of a copper plate and rocked back and forth to produce a rough grain, which, when printed, produces a velvety black.
(mining engineering)
A small digging bucket mounted on two rocker arms in which auriferous alluvial sands are agitated by oscillation, in water, to collect gold.
(ordnance)
Movable, built-in support in a field gun carriage, between the trail and the cradle, that allows changes in elevation to be made without disturbing the angle of position setting.
References in periodicals archive ?
Next up for live music are rockers Marmozets,a West Yorkshire rock band, who take to the stage on October 18; tickets PS12.
But Pin Rockers team captain Rudy Valenzuela came into the rescue with his double strikes shoring up their chance.
The rockers opted not to play at all because Paul Stanley and Gene Simmons reportedly cannot agree on which line-up should perform during the April ceremony in New York City, Contactmusic reported.
Scorpion's COO, Zac Collins, adds, “Our new Endurance Series shaft mount rockers were tested in circle track racing for several years before we released them to the public.
She glanced back at Rocker who was hesitating between wanting to help and not wanting to become impaled on the long metal spikes which had formed themselves on the dragons since their escape; the metal bindings which held their mechanical skeletons had split open and created deadly weapons.
Rockers wore leather and rode motorbikes, apprentice Hell's Angels dreaming of Harley-Davidsons.
The colorful rockers were met by the Mayor of the city of Ruse Bozhidar Yotov, who is a rocker and motorcycling fan himself, and the Russian consul in Ruse Vladimir Klimanov, BGNES reported.
The Dolly Rockers are anything but diplomatic and predictable - they''re as likely to snog you as happy slap you - and are unafraid to say what they think, to anyone.
Each group claimed its own culture and style--but it was the Rockers that entered America with the Beatles in 1964, leading a generation of vast musical change fueled by British influences.
Go bang-up-to-date with the Rar, by Eames, pounds 345, with its vibrantly coloured acrylic seat and steel and wood rockers, from TwentyTwentyone.