What's the noun for elliptically? Here's the word you're looking for.
ellipsis
(typography) A mark consisting of three periods, historically with spaces in between, before, and after them “ . . . ”, nowadays a single character “…” Ellipses are used to indicate that words have been omitted in a text or that they are missing or illegible.
(grammar) The omission of a grammatically required word or phrase that can be inferred.
(film) The omission of scenes in a film that do not advance the plot.
“This paper describes and tests several algorithms for calculating ellipticity, rectangularity, and triangularity shape descriptors.”
“From these can be calculated the ellipticity or deviation from a perfect sphere of the planet and its departure from an ellipsoidal shape.”
“It is not exactly the same face because of the tilt of the Moon's rotational axis to its orbital plane around Earth, and the slight ellipticity of that orbit.”