单词	protectant
释义	protectant /prəˈtɛkt(ə)nt / noun A substance that provides protection, e.g. against disease or ultraviolet radiation.Its dry-film protectant repels dust, sand and other crud that sticks to ‘wet’ oils and silicones.... However, their market share for major farm production supplies - including feed, seed, fertilizer, crop protectants and petroleum - dropped 1 percent from 2000. After being purified, the moth virus is formulated to contain a sticking agent as well as an ultraviolet protectant to delay its inactivation in sunlight once used in the field. Rhymes disinfectant, expectant
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