Cannabidiol==CBD
Synthetic cannabidiol == synthetic CBD (i.e. just CBD)
Synthetic cannabidiol == synthetic CBD (i.e. just CBD)
The word synthetic has a defined meaning: made by a chemical synthesis; especially to imitate a natural product.
e.g.:
"A synthetic form of the molecule cannabidiol, a molecule which is also known as CBD" is structurally the same but less ambiguous because of the addition of additional words..