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Medical Definition of Ultraviolet a
1. Ultraviolet radiation from 320 to 400 nm that causes skin tanning but is very weakly sunburn-producing and carcinogenic. (05 Mar 2000)
Lexicographical Neighbors of Ultraviolet A
Other Resources:
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1. Ultraviolet radiation from 320 to 400 nm that causes skin tanning but is very weakly sunburn-producing and carcinogenic. (05 Mar 2000)