Webster’s Revised Unabridged Dictionary · 1913
Ellipsis
El·lip′sis (ĕl·lĭp′sĭs), n.; pl. Ellipses (- sēz). [L., fr. Gr. ἔλλειψις a leaving, defect, fr. ἐλλείπειν to leave in, fall short; ἐν in + λείπειν to leave. See In, and Loan, and cf. Ellipse.] 1. (Gram.) Omission; a figure of syntax, by which one or more words, which are obviously understood, are omitted; as, the virtues I admire, for, the virtues which I admire.
2. (Geom.) An ellipse. [Obs.]