Definitions for "Lipogram"
A writing composed of words not having a certain letter or letters; -- as in the Odyssey of Tryphiodorus there was no A in the first book, no B in the second, and so on.
a text that excludes a particular letter or particular letters of the alphabet
a composition which purposefully (and playfully) lacks a particular letter
Keywords:  gymnastics, verbal, form
a form of verbal gymnastics