Sunblock meaning

sŭn'blŏk'
A chemical preparation, such as zinc oxide, that is applied to the skin to protect it from the ultraviolet rays of the sun.
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A substance, as para-aminobenzoic acid, used in lotions, cosmetics, etc. to block certain ultraviolet rays of the sun and reduce the danger of sunburn; sunscreen.
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A lotion, cosmetic, etc. containing this.
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A chemical preparation, such as zinc oxide, that is applied to the skin to protect it from the ultraviolet rays of the sun.
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A cream, to be spread on the skin, containing organic compounds that absorb, and/or titanium dioxide that reflects the sun's ultraviolet radiation.
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