RETARD
\ɹɪtˈɑːd], \ɹɪtˈɑːd], \ɹ_ɪ_t_ˈɑː_d]\
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r[=e]-tärd', v.t. to keep back: to delay: to defer.--adj. RETAR'DANT.--n. RETARD[=A]'TION, delay: hinderance: obstacle: (phys.) a continuous decrement in velocity: in acoustics, the distance by which one wave is behind another: (mus.) the act of diminishing the rate of speed: (teleg.) decrease in the speed of telegraph signalling.--adjs. RETAR'D[=A]TIVE, tending or serving to retard; RETAR'D[=A]TORY.--ns. RETAR'DER; RETARD'MENT.--RETARDATION OF MEAN SOLAR TIME, the change of the sun's right ascension in a sidereal day. [Fr.,--L. retard[=a]re--re-, inten., tard[=a]re, to make slow--tardus, slow.]
By Thomas Davidson
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Make slow or late, delay progress or arrival or accomplishment or happening of; (esp. of physical phenomena, e.g. motion of tides, waves, or celestial bodies) happen, arrive, behind normal or calculated time; hence or cogn. retardation, retardment. nn., retardative, retardatory, aa. (N.) retardation (r. of tide or high water, interval between full moon& following high water). [French]
By Sir Augustus Henry
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