Polaroid

(lə ro̵id′)

  1. a transparent material containing embedded crystals capable of polarizing light: used in optics, photography, etc.
    1. Origin: short for Polaroid Land Camera

      a camera that develops the film negative internally and produces a print within seconds after the process is initiated
    2. such a photograph

Origin: polar + -oid

See Polaroid in American Heritage Dictionary 4

  1. A trademark used for a specially treated, transparent plastic capable of polarizing light passing through it, used in glare-reducing optical devices.
  2. A trademark used for a camera and film that produce instant photographs.
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