Pulsator definitions

pŭl'sā'tər, pŭl-sā'-
A pulsating device or machine.
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Any of several devices having a throbbing action, as a massage vibrator or a milking machine.
noun
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(astronomy) Any pulsating astronomical object.
noun
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(dated) A beater; a striker.
noun
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(engineering, dated) That which beats or throbs in working.
noun
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Origin of pulsator