sunscreen

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sunscreen

 [sun´skrēn]
a lotion applied to the skin as protection against sunburn and the harmful effects of ultraviolet radiation. Sunscreens are labeled with a numerical sun protection factor; the higher the number the more protection is afforded. Patients should be cautioned that the sunscreen should be reapplied after swimming or profuse sweating and that sun exposure must still be limited to prevent adverse effects.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

sun·screen

(sŭn'skrēn),
A topical product that protects the skin from ultraviolet-induced erythema and resists washing off; its use also reduces formation of solar keratoses and reduces ultraviolet-B-induced melanoma and nonmelanoma skin cancers and wrinkling.
Farlex Partner Medical Dictionary © Farlex 2012

sunscreen

(sŭn′skrēn′)
n.
A preparation, often in the form of a cream or lotion, used to protect the skin from the damaging ultraviolet rays of the sun.

sun′screen′ing adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
A transparent lotion or cream containing oxybenzone and dioxybenzone, which absorb or scatters UVB light to reduce the risk of actinic-related malignancy and premalignancy
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

sunscreen

Public health A transparent substance lotion or cream containing oxybenzone and dioxybenzone, which absorbs or scatters UVB light, to ↓ the risk of actinic-related CA. See SPF rating Cf Melanoma, Sunblock, Tanning salon, Ultraviolet light.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

sun·screen

(sŭn'skrēn)
A topical product that protects the skin from ultraviolet-induced erythema; its use also reduces formation of solar keratoses and may prevent ultraviolet B-induced skin cancer and wrinkling.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Sunscreen

Products which block the damaging rays of the sun. Good sunscreens contain either para-aminobenzoic acid (PABA) or benzophenone, or both. Sunscreen protection factors range from 2-45.
Mentioned in: Sunburn
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

Patient discussion about sunscreen

Q. what does a sun block cream do? and what are a UV rays?

A. It blocks out harmful Ultra violet rays from the skin as the previous entries have related; however it can also block your ability to produce vitamin D. If you live in a northerly area or one that receives limited sunlight, its recommended to get at least 15 minutes of sun a day (this is probably best done with minimal sunblock) and according to personnal sun sensitivity. Another thing to keep in mind is that sunblock works best if applied 20 minutes before sun exposure.

More discussions about sunscreen
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References in periodicals archive ?
The same happened the other day when couple of travellers were stopped near the Super Market and issued ticket just for that their kids had placed sun-screens to save from the heat.
The researchers collected information about sunscreen use; sun-screens did not appear to affect these associations.
Antioxidants and SPF sun-screens protect, while the long wearing, oil free formula lasts and lasts.
The first, for a school for electrical engineers at Valence, resulted in a facade graphic of binary code digits, heat-bonded onto glass sun-screens. At Isle d'Abeau, Baur's graphics occupy the building's interior wall and floor surfaces, taking the, ostensibly, purely functional role of directional, hazard and equipment indicator signs--for fire alarms, first aid kits, and so on.
Each is given particular character by differing heights, planning and by different forms of contact with the outside world through the sun-screens and the glass panels of the elevations - in a sense, the spaces speak through the facades.