Plexiglas and Polymethyl methacrylate

Plexiglas noun - A light transparent weather resistant thermoplastic.

Polymethyl methacrylate and plexiglas are semantically related. In some cases you can use "Polymethyl methacrylate" instead a noun "Plexiglas".

Polymethyl methacrylate noun - A transparent plastic used as a substitute for glass.

Plexiglas and polymethyl methacrylate are semantically related. Sometimes you can replace term "Plexiglas" with "Polymethyl methacrylate", this terms are similar.