styrofoam

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English

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Wikipedia
Expanded polystyrene

Etymology

Genericized trademark of Styrofoam, from -styr- (from polystyrene) + -o- + foam.

Pronunciation

Noun

styrofoam (countable and uncountable, plural styrofoams)

  1. Expanded polystyrene foam, such as is used in cups and packaging.
    • 1988 November 4, Cecil Adams, “The Straight Dope”, in Chicago Reader‎:
      A while ago I read your column concerning the effects of hot tea on styrofoam cups.
    • 2013 May-June, Kevin Heng, “Why Does Nature Form Exoplanets Easily”, in American Scientist‎, volume 101, number 3, archived from the original on 9 May 2013, page 184:
      In the past two years, NASA’s Kepler Space Telescope has located nearly 3,000 exoplanet candidates ranging from sub-Earth-sized minions to gas giants that dwarf our own Jupiter. Their densities range from that of styrofoam to iron.
    • 2018 August 9, Gerald Porter Jr., Corinne Ramey, “Industry-Backed Group Keeps Fighting Foam Ban”, in The Wall Street Journal‎:
      Expanded polystyrene foam—commonly, although incorrectly, called Styrofoam—has been the subject of a protracted battle between New York City officials and large industry players, particularly Dart.

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