photosensitive


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photosensitive

 [fo″to-sen´sĭ-tiv]
exhibiting photosensitivity.

pho·to·sen·si·tive

(fō'tō-sen'si-tiv),
1. An abnormally heightened reactivity of the skin to sunlight.
2. Responding to light, for example, as by a photocell.
[photo + L. sensus, a feeling, fr. sentio, to feel]

photosensitive

/pho·to·sen·si·tive/ (-sen´sĭ-tiv)
1. reacting to light; said of a cell or organism.
2. having abnormally heightened sensitivity of the skin or eyes to sunlight.

photosensitive

(fō′tō-sĕn′sĭ-tĭv)
adj.
1. Sensitive or responsive to light or other radiant energy.
2. Medicine Abnormally sensitive or reactive to light.

photosensitive

[-sen′sitiv]
Etymology: Gk, phos + L, sentire, to feel
pertaining to increased reactivity of the skin to sunlight caused by a disorder such as albinism or porphyria, or, more frequently, by the use of certain drugs. Relatively brief exposure to sunlight or to an ultraviolet lamp may cause edema, papules, urticaria, or acute burns in individuals with endogenous or acquired photosensitivity. Treatment involves avoidance of exposure to sunlight or the photosensitizing agent.

pho·to·sen·si·tive

(fō'tō-sen'si-tiv)
1. An abnormally heightened reactivity of the skin to sunlight.
2. Responding to light.
[photo + L. sensus, a feeling, fr. sentio, to feel]

photosensitive

exhibiting abnormally heightened sensitivity to sunlight.

photosensitive conjunctivitis
conjunctivitis that begins on the lateral quadrant of the cornea and reduces in severity to the center of the cornea—the area exposed to the sun's rays. If left unattended progresses to keratitis.
photosensitive dermatitis
is confined to the dorsal parts of the body exposed to the sunlight, and to parts with little or no pigment and the least hair or wool covering. The dermatitis is diffuse and often sufficiently severe to kill the animal. Initially there is itching and rubbing, then edema, followed by weeping, then necrosis or gangrene. Additional lesions may be on the undersurface of the tongue, at the mucocutaneous junction at the lips and on the lateral aspects of the teats.
Enlarge picture
Photosensitive dermatitis on the teat of a cow. By permission from Blowey RW, Weaver AD, Diseases and Disorders of Cattle, Mosby, 1997
References in periodicals archive ?
The photosensitive device developed at Exeter contains no metals and is therefore completely transparent but, as it can detect light from across the whole visible light spectrum, it is as efficient at sensing light as other recently developed opaque photoelectric devices.
With advancements in the electronics industry particularly in the East China region, to where HCSZ's products are mainly supplied, demand for photosensitive dry films for use in substrates in semiconductor packages, direct imaging system, lead frame, and etc.
Electrochemical graining process of aluminium surface is carried out in order to improve the water adhesion on the aluminium oxide film during the printing process and to enhance the adhesion of the photosensitive layer.
In addition, photosensitive people would need to be at least four kilometres away to significantly reduce the possibility of seizures, a distance approximately 100 times the height of an average turbine.
Professor Arnold Wilkins, who works in the University of Essex's psychology department, and his colleagues analysed the effect of "shadow flicker" on photosensitive people.
Andreas Lendlein at GKSS Research Center in Teltow, Germany, and his colleagues bestowed this shape-memory property on a polymer blend by adding photosensitive molecules.
This weighty, space-hogging machine--dubbed the Big Blue Albatross by some because of its standard color and high maintenance cost--would output galleys of type, which had been transferred to photosensitive paper via the miracle of electromagnetic impulses.
Professor Graham Harding found FOUR popular Nintendo games contain flashing and repetitive light patterns that could possibly cause fatal seizures brought on by photosensitive epilepsy.
I think our photosensitive cell in our brain is kind of caught up and we're doing OK now,'' he said.
On each dot, or pixel, is a photosensitive (light-sensitive) element.
This show was arranged around a crucial insight: Goldstein rendered the hard surfaces of Minimalism photosensitive.
Consultant Ophthalmologist James Talks and his team at the Royal Victoria Infirmary, in Newcastle, were the first to treat older people using lasers and photosensitive dye to stop their sight deteriorating.