chemistries

Noun

Singular chemistry

Plural chemistries

1. (informal) The plural form of chemistry; more than one chemistry.

   Metals and non-metals have very different chemistries.

Usage note

• A more formal way of saying something like this would use the phrase, "The chemistry of..." (uncountable). But chemistry is used as a plural informally.

  The chemistry of metals and nonmetals is very different. (compare with above)