sunblock
Học thuậtThân thiện
Definition
Noun: A topical substance, typically a cream or lotion, that is applied to the skin to absorb or reflect a significant portion of the sun's ultraviolet (UV) radiation, thereby protecting the skin from sunburn and other damage.
Usage
Sunblock is used as a protective measure against the harmful effects of sun exposure. It is applied directly to exposed skin before going outdoors. * You should always apply sunblock before going to the beach. * This sunblock has a high SPF (Sun Protection Factor) for maximum protection. * Don't forget to put sunblock on your ears and the back of your neck.
Advanced Usage
- Physical vs. Chemical Sunblock: The term "sunblock" is sometimes used specifically to refer to physical sunscreens containing mineral ingredients like zinc oxide or titanium dioxide, which sit on the skin's surface to physically block UV rays. In contrast, "sunscreen" often refers to chemical formulas that absorb UV radiation. However, in common usage, the terms are frequently used interchangeably.
- Mineral sunblock is often recommended for sensitive skin.
Variants and Related Words
- Sunscreen (n): A very close synonym, often used interchangeably with "sunblock" in everyday language.
- Sun cream (n): Another common term, especially in British English.
- Sun protection (n): A broader term encompassing sunblock, protective clothing, and seeking shade.
Synonyms
- Sunscreen
- Sun cream
- Sun lotion
Related Phrases
- To apply sunblock: To put sunblock on the skin.
- It is important to apply sunblock generously and reapply it every two hours.
- SPF (Sun Protection Factor): A measure of how well a sunblock protects skin from UVB rays.
- Dermatologists recommend using a sunblock with an SPF of 30 or higher.
Noun
- a cream spread on the skin; contains a chemical (as PABA) to filter out ultraviolet light and so protect from sunburn