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the part of the electromagnetic spectrum with wavelengths shorter than light but longer than X-rays; in the range 0.4 × 10--6 and 1 × 10--8 metres


Pertaining to ultraviolet radiation. Abbreviated UV.


(1) See ultraviolet light.

(2) A cloud-based storage locker for licensed content from the Digital Entertainment Content Ecosystem (see DECE). Under the Digital HD brand, purchases of Blu-ray discs with redeemable coupons and purchases of movies and TV shows (not rental) from participating online retailers entitles users to keep their content in the UltraViolet cloud and stream or download it as required.

Depending on the retailer's agreement, content might be sharable with friends and family, and parental access can be applied. A physical disc may also be obtainable. See Digital HD, Blu-ray Combo Pack and media locker.
References in periodicals archive ?
Near UV and visible electromagnetic radiation have significant influence on filter paper made only from virgin fibres without any additives (calcium carbonate, clay, dye, starch, pigment) decrease reflectance value of those papers, especially in blue part spectra.
The BP molecules absorb near UV irradiation and are excited to a singlet state (BP-S) that is short-lived and which by intersystem crossing (ISC) forms an excited triplet state (BP-T).
Acylphosphine oxide type photoinitiators have the distinct advantage of absorbing in the near UV range, which causes them to undergo fast photolysis, leading to the generation of benzoyl and phosphinoyl radicals.
BASF's primer cures in just a few minutes when exposed to visible or near UV light from UV-A lamps, or even sunlight, according to the company.
The products include blue, green and ultraviolet (UV) light emitting diodes (LEDs), near UV lasers, radio frequency (RF) and microwave devices, and power switching devices.
having higher extinction coefficients in the near UV, or showing a red shift of their absorption spectrum, or being able to be decomposed through excitation transfer, or exhibiting acid releasing properties (for UV activated acid curing), a better compatibility, a lower extractability.
The 5 instruments on-board cover the visible (320-530 nm), near UV (180-300 nm), far UV (130-180 nm), soft X-ray (0.