Sunblock Meaning: Definition, Examples, and Translations
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sunblock
[ˈsʌn.blɒk ]
Definition
skin protection
Sunblock is a substance applied to the skin to protect it from the harmful effects of ultraviolet (UV) radiation from the sun. It helps in preventing sunburns and reduces the risk of skin cancer by absorbing, reflecting, or scattering the sunlight. It is available in various forms, including lotions, creams, and sprays, and is commonly used during outdoor activities, especially in sunny weather. The effectiveness of sunblock is often rated by its Sun Protection Factor (SPF).
Synonyms
UV protection, sun cream, sunscreen.
Examples of usage
- Don't forget to apply sunblock before going to the beach.
- He always carries sunblock in his backpack during summer hikes.
- Using sunblock regularly can help maintain healthy skin.
- Children should have sunblock applied every few hours while playing outside.
- She prefers using a water-resistant sunblock for swimming.
Translations
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Interesting Facts
Science
- Sunblock contains active ingredients like zinc oxide or titanium dioxide, which physically reflect UV rays from the skin.
- Chemical sunscreens work by absorbing UV radiation, preventing it from penetrating the skin.
- SPF, or Sun Protection Factor, measures how well a sunblock can protect the skin from UVB rays responsible for sunburn.
Health
- Regular use of sunblock can greatly reduce the risk of skin cancer, which is linked to excessive UV exposure.
- Aside from preventing sunburns, it also helps in slowing down skin aging and preventing dark spots.
- Dermatologists recommend using broad-spectrum sunblock with an SPF of at least 30 for effective protection.
Cultural Impact
- Sunblock has become a staple in beach culture, where it's common to see people applying it before sunbathing.
- The necessity of sun protection has been widely publicized through campaigns emphasizing safety during outdoor activities.
- Fashion has also been influenced—clothes like hats and UV-blocking swimwear are now popular alongside sunblock.
Environmental Considerations
- Certain sunblock ingredients can harm coral reefs, leading to a push for 'reef-safe' products.
- Environmental groups advocate for sunscreen formulas that minimize ocean pollution while providing effective UV protection.
- Awareness about the impact of sunscreen use on marine life has prompted companies to develop eco-friendly alternatives.
Origin of 'sunblock'
Main points about word origin
- The term 'sunblock' combines the words 'sun' and 'block', meaning to block the sun's harmful effects.
- While 'sunscreen' is often used interchangeably, 'sunblock' traditionally refers to products that physically block UV rays.
- The roots of skin protection can be traced back to ancient civilizations, who used natural oils and pastes to shield themselves from sunlight.
The term 'sunblock' originated in the mid-20th century as a blend of the words 'sun' and 'block', reflecting its purpose to block the sun's harmful rays. It first came into popular use during the 1960s, coinciding with a growing awareness of the dangers of overexposure to sunlight. The formulation of sunblock evolved from early petroleum-based creams to more sophisticated products that incorporate various active ingredients like zinc oxide and titanium dioxide. The increasing incidence of skin cancer and the rise of the tanning trend fueled the development and marketing of sunblocks. Today, the term is often used interchangeably with 'sunscreen' despite some scientific distinctions between the two products.