polyurethane=البوليوريثان

polyurethane=البوليوريثان

ONLINE ETYMOLOGY DICTIONARY:

polyurethane (n.)

1944, from polymer + urethane.

polymer (n.)

a substance built from a large number of simple molecules of the same kind, 1866, probably from Ger. Polymere (Berzelius, 1830), from Gk. polymeres "having many parts," from polys "many" (see poly-) + meros "part" (see merit (n.)). Related: Polymeric.

urethane

1838, from Fr. uréthane (Dumas, 1833), from urea + ethane.

urea

1806, Latinized from Fr. urée (1803), from Gk. ouron "urine" (see urine).