KICKING
\kˈɪkɪŋ], \kˈɪkɪŋ], \k_ˈɪ_k_ɪ_ŋ]\
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a rhythmic thrusting movement of the legs as in swimming or calisthenics; "the kick must be synchronized with the arm movements"; "the swimmer's kicking left a wake behind him"
By Princeton University
Word of the day
Ultraviolet Ray
- That portion electromagnetic spectrum immediately below visible range extending into x-ray frequencies. longer near-biotic vital necessary for endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic extravital rays) viricidal, bactericidal, mutagenic, carcinogenic used as disinfectants.