1. gapping - Noun
2. gapping - Verb
Derived from gap
gapping
present participle of gap
(linguistics) A type of ellipsis that occurs in the non-initial conjuncts of coordinate structures, and usually elides minimally a finite verb and further any non-finite verbs that are present. Example: "Some ate bread, and others rice."
(anatomy) The formation of a gap.
Source: en.wiktionary.org