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Polaroid

Polaroid The trade name of a plastic sheet impregnated with an organic iodide compound which strongly absorbs light in one vibration direction and allows it to pass freely in the other vibration direction. The compound, iodocinchonidine sulphate, was first discovered by W. D. Herapath in 1852 and was named ‘herapathite’ in his honour. In 1928 E. H. Land combined the compound with plastic to produce the Polaroid sheet. It is now used in the polarizer and analyser of all polarizing microscopes to produce plane-polarized and cross-polarized (see CROSSED POLARS) light respectively.

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"Polaroid." A Dictionary of Earth Sciences. . Encyclopedia.com. 16 Dec. 2017 <http://www.encyclopedia.com>.

"Polaroid." A Dictionary of Earth Sciences. . Encyclopedia.com. (December 16, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/polaroid

"Polaroid." A Dictionary of Earth Sciences. . Retrieved December 16, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/polaroid

Polaroid

Po·lar·oid / ˈpōləˌroid/ • n. trademark 1. material in thin plastic sheets that produces a high degree of plane polarization in light passing through it. ∎  (Polaroids) sunglasses with lenses made from such material. 2. a photograph taken with a Polaroid camera. • adj. Photog. denoting a type of camera with internal processing that produces a finished print rapidly after each exposure. ∎  denoting film for or a photograph taken with such a camera: a Polaroid snapshot.

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"Polaroid." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 16 Dec. 2017 <http://www.encyclopedia.com>.

"Polaroid." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 16, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polaroid-0

"Polaroid." The Oxford Pocket Dictionary of Current English. . Retrieved December 16, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polaroid-0

Polaroid

Polaroid: see Land, Edwin H.

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"Polaroid." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 16 Dec. 2017 <http://www.encyclopedia.com>.

"Polaroid." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (December 16, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/polaroid

"Polaroid." The Columbia Encyclopedia, 6th ed.. . Retrieved December 16, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/polaroid

Polaroid

Polaroidavoid, Boyd, Coed, droid, Floyd, Freud, Lloyd, overjoyed, self-employed, unalloyed, underemployed, unemployed, void •geoid • amoeboid (US ameboid) •globoid • cuboid • gadoid • typhoid •fungoid • discoid • tabloid • colloid •celluloid • mongoloid • alkaloid •coralloid • crystalloid • prismoid •arachnoid • sphenoid • hominoid •crinoid, echinoid •solenoid • humanoid • paranoid •hypoid • anthropoid • gabbroid •android • steroid • thyroid • hydroid •spheroid • meteoroid • Murgatroyd •Polaroid •haemorrhoid (US hemorrhoid) •asteroid • schizoid • factoid • mastoid •deltoid • planetoid • ovoid • trapezoid •rhizoid

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"Polaroid." Oxford Dictionary of Rhymes. . Encyclopedia.com. 16 Dec. 2017 <http://www.encyclopedia.com>.

"Polaroid." Oxford Dictionary of Rhymes. . Encyclopedia.com. (December 16, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polaroid

"Polaroid." Oxford Dictionary of Rhymes. . Retrieved December 16, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polaroid