Definition of Mylar in English:


Line breaks: Mylar
Pronunciation: /ˈmʌɪlɑː


[mass noun] trademark
  • A form of polyester resin used to make heat-resistant plastic films and sheets. It is made by copolymerizing ethylene glycol and terephthalic acid.
    More example sentences
    • If they are sleeved in plastic, be sure it is not PVC plastic (look for Mylar or polypropylene).
    • A balloon constructed of a tough polyester film called Mylar will deliver her to the edge of space.
    • It has an optical quality far better than other materials, such as Mylar or polypropylene, that are typically used in laboratories.


1950s: an arbitrary formation.

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