material which in thin sheets produces a high degree of plane polarization of light passing through it, 1936, proprietary name (Sheet Polarizer Co., Union City, N.J.). For the elements, see polarize + -oid. As a type of camera producing prints rapidly it is attested from 1961. A trademarked brand name, and, if you omit that, their lawyers will send you The Letter, a la Photoshop, Dumpster, Taser, Wiffle Ball, Xerox, etc.
updated on February 15, 2023
Dictionary entries near Polaroid