Ellipsis

Main Entry: el·lip·sis
Pronunciation: i-'lip-s&s, e-
Function: noun
Inflected Form(s): plural el·lip·ses /-"sEz/
Etymology: Latin, from Greek elleipsis ellipsis, ellipse, from elleipein to leave out, fall short, from en in + leipein to leave -- more at IN, LOAN
1 a : the omission of one or more words that are obviously understood but that must be supplied to make a construction grammatically complete b : a sudden leap from one topic to another
2 : marks or a mark (as...) indicating an omission (as of words) or a pause