DIRECTLY PROPORTIONAL
\da͡ɪɹˈɛktli pɹəpˈɔːʃənə͡l], \daɪɹˈɛktli pɹəpˈɔːʃənəl], \d_aɪ_ɹ_ˈɛ_k_t_l_i p_ɹ_ə_p_ˈɔː_ʃ_ə_n_əl]\
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.