Yes, it's more commonly referred as Demerol.
It is synthetic, but what we use to make concrete is natural AND synthetic.
is bromine natural or synthetic?
Polyester is synthetic.
No. It is, along with pethidine, the chemical name for Demerol, a completely separate synthetic narcotic.
it is synthetic
synthetic
Cotton and wool are natural; nylon is synthetic.
synthetic
Semi-synthetic
they are synthetic.
The difference between natural and synthetic things are that synthetic things are not real. The definition for synthetic is: artificial; not genuine. Natural things are things that can be found in nature and is real.