Definition of "ellipsis"

(typography, mathematics) A mark consisting of (in English) three periods, historically or more formally with spaces in between, before, and after them, " . . ", or, more recently, a single character, "…", used to indicate that words have been omitted in a text or that they are missing or illegible, or (in mathematics) that a pattern continues (e.g., 1, ..., 4 means 1, 2, 3, 4).  quotations  examples

(grammar, rhetoric) The omission of a word or phrase that can be inferred from the context.  examples

(film) The omission of scenes in a film that do not advance the plot.  quotations  examples

(obsolete, geometry) An ellipse.