SPREADING FACTOR
\spɹˈɛdɪŋ fˈaktə], \spɹˈɛdɪŋ fˈaktə], \s_p_ɹ_ˈɛ_d_ɪ_ŋ f_ˈa_k_t_ə]\
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.