styrofoam

plural styrofoams

1. countableuncountableExpanded polystyrene foam, such as is used in cups and packaging.

   A while ago I read your column concerning the effects of hot tea on styrofoam cups.

   1988 November 4, Cecil Adams, “The Straight Dope”, in Chicago Reader

   2 more examples

   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.

   2013 May-June, Kevin Heng, “Why Does Nature Form Exoplanets Easily”, in American Scientist, volume 101, number 3, archived from the original on 09 May 2013, page 184

   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.

   2018 August 9, Gerald Porter Jr., Corinne Ramey, “Industry-Backed Group Keeps Fighting Foam Ban”, in The Wall Street Journal, archived from the original on 19 Aug 2023