/ Dictionary / Index M mantis: Meaning and Definition of Find definitions for: man•tis Pronunciation: (man'tis), [key] — pl. -tis•es, -tes any of several predaceous insects of the order Mantidae, having a long prothorax and typically holding the forelegs in an upraised position as if in prayer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mantis (Thesaurus) Mantinea mantispid Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language