See Also: photocell(dictionary)
photocell(encyclopedia)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Flowers(medicine)
Flowers Hospital(health)
flowers of benzoin(medicine)
flowers of sulfur(medicine)
flowers of zinc(medicine)
Fear of flowers(health)
flowers of antimony(medicine)

flowers of benzoin (medicine) and photocell (sh)


flowers of benzoin (medicine)


flowers of benzoin -->
benzoic acid


C6H5COOH;occurs naturally in gum benzoin; it is used as a Food preservative, locally as a fungistatic, and orally as an antiseptic, diuretic, and expectorant. It is excreted rapidly as hippuric acid.

Synonym: benzoyl hydrate, flowers of benzoin.


photocell (sh)




or photoelectric cell or electric eye

Solid-state device with a photosensitive cathode that emits electrons when illuminated and an anode for collecting the emitted electrons.

Illumination excites electrons, which are attracted to the anode, producing current proportional to the intensity of the illumination. In a photovoltaic cell, light is used to produce voltage. In a photoconductive cell, light is used to regulate the flow of current. Photocells are used in control systems, where interrupting a beam of light opens a circuit, actuating a relay that supplies power to a mechanism to bring about a desired operation, such as opening a door or setting off a burglar alarm. Photocells are also used in photometry and spectroscopy.