polystyrene

From poly- +‎ styrene.

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polystyrene (plural polystyrenes)

1. (organic chemistry) A vinylic polymer of styrene, CH₂CHphenyl.
   • 1996 February 4, Julia Campbell, “Ray McIntire, 77, Dow Engineer And the Inventor Of Styrofoam”, in The New York Times‎^[1]:

     It was 30 times lighter and more flexible than the polystyrene that had previously been used.

   • 2014, “Tom & Gerri” (1:14 from the start), in Inside No. 9, season 1, episode 3, spoken by Tom (Reece Shearsmith):

     Gerri (Gemma Arterton): Well, he might not be begging. He might be waiting for somebody. / Tom: Of course he's begging. He's got a polystyrene cup in front of him.

2. (organic chemistry) An alkane chain of benzene molecules, RCH₂CHphenylR.

• thermocol (India)