cod vs synthetic

cod

adj
  • Having the character of imitation; jocular. 

  • Bad. 

noun
  • The Atlantic cod, Gadus morhua. 

  • The cocoon of a silkworm. 

  • Other not closely related fish which are similarly important to regional fisheries, as the hapuku and cultus cod. 

  • The sea fish of the family Gadidae which are sold as "cod", as haddock (Melanogrammus aeglefinus) and whiting (usually Merlangius merlangus). 

  • A joke or an imitation. 

  • The meat of any of the above fish 

  • Other not closely related fish which resemble the Atlantic cod, as the rock cod (Lotella rhacina) and blue cod (Parapercis colias). 

  • A stupid or foolish person. 

  • The sea fish of the genus Gadus generally, as inclusive of the Pacific cod (Gadus macrocephalus) and Greenland cod (Gadus ogac or Gadus macrocephalus ogac). 

verb
  • To attempt to deceive or confuse; To joke; To kid. 

synthetic

adj
  • Artificial, not genuine. 

  • Of, or relating to synthesis. 

  • Produced by synthesis instead of being isolated from a natural source (but may be identical to a product so obtained). 

  • Produced by synthesis, thought to have the same effect as its natural counterpart, but chemically different from it. 

  • Pertaining to the joining of bound morphemes in a word (compare analytic). 

  • Of a language, having a grammar principally dependent on the use of bound morphemes to indicate syntactic relationships (compare analytic). 

noun
  • A synthetic compound. 

How often have the words cod and synthetic occurred in a corpus of books? (source: Google Ngram Viewer )