polytype

/P AA0 L IY0 T AY0 P/
noun
  1. 1

    Any of the types involved in polytypism.

    โ€œOrthochrysotile is a polytype of chrysotile.โ€

  2. 2

    A cast, or facsimile copy, of an engraved block, matter in type, etc.

  3. 3

    In the Hindleyโ€“Milner type system, a data type containing variables bound by one or more โˆ€ (for-all) quantifiers.

verb
  1. 1

    To produce a polytype of.

    โ€œto polytype an engravingโ€

Source: https://en.wiktionary.org/wiki/polytype