SUNSCREENS Meaning and
Definition
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Sunscreens are cosmetic or medical products that aim to protect the skin from the harmful effects of the sun's ultraviolet (UV) radiation. They are typically formulated as lotions, creams, gels, sprays, or sticks, which can be applied topically over the exposed areas of the skin. The primary function of sunscreens is to absorb, scatter, or reflect the UV rays before they penetrate the skin, thus minimizing the damage caused by prolonged sun exposure.
Sunscreens generally contain active ingredients known as ultraviolet filters, which can be divided into two main types: organic and inorganic filters. Organic filters consist of chemical compounds that absorb UV rays and convert them into heat, while inorganic filters are minerals that create a physical barrier by reflecting or scattering the UV radiation. These filters are often combined in various formulations to provide broad-spectrum protection against both UVA and UVB rays, as both types can cause skin damage, premature aging, and increase the risk of skin cancer.
The effectiveness of a sunscreen is determined by its sun protection factor (SPF), which indicates the level of protection against UVB rays. The SPF rating typically ranges from 15 to 50+, with higher numbers offering more protection. It is recommended to apply sunscreen generously and evenly, around 15 to 30 minutes before sun exposure, and to reapply every two hours or after swimming or excessive sweating to maintain its optimal function. Sunscreens are an essential component of a sun protection routine, particularly during intense sun exposure or in environments with a higher risk of UV radiation, such as beaches, mountains, or long periods spent outdoors.
Top Common Misspellings for SUNSCREENS *
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Other Common Misspellings for SUNSCREENS
Etymology of SUNSCREENS
The term "sunscreens" is a compound word composed of "sun" and "screens".
The word "sun" originates from the Old English word "sunne" and the Proto-Germanic word "sunnon". This term has Indo-European roots, with cognates in various languages, such as the Old Norse "sunna", the Old High German "sunna", and the Gothic "sunnō". Ultimately, it can be traced back to the Proto-Indo-European root "*sóh₂wl̥", meaning "sun".
The word "screens" comes from the Old French word "escran", which means a partition or shield. This Old French term originated from the Frankish word "skrank", meaning "barrier" or "screen". Further back, the Frankish term came from the Proto-Germanic word "*skrankiz".
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