lipogram

/L IH1 P AH0 G R AE0 M/
noun
  1. 1

    A word or writing that does not use a particular symbol or symbols.

    โ€œ"Transubstantiationalists" is a particularly long single-word lipogram, not using the letter "e".โ€

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