society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [adjective] > type of synthetic resin or plastic (2)
used attributively and absol. to designate plastics, resins, etc., made by condensation of urea with formaldehyde.
attributive. Denoting plastics, synthetic resins, etc., made by polymerizing compounds containing a vinyl group —CH=CH2; consisting or made of such…