Definition of synthetics:
(adj) :
(chemistry) Produced by synthesis instead of being isolated from a natural source (but may be identical to a product so obtained).
(adj) :
(medicine) Produced by synthesis, thought to have the same effect as its natural counterpart, but chemically different from it.
(adj) :
Artificial, not genuine.
(adj) :
Of, or relating to synthesis.
(adj) :
(linguistics) Of a language, having a grammar principally dependent on the use of bound morphemes to indicate syntactic relationships (compare analytic).
(adj) :
(grammar) Pertaining to the joining of bound morphemes in a word (compare analytic).