To turn in an opposite direction; turn end for end, upside down, or inside out; place in a contrary order or position: as, to invert a cone or a sack; to invert the order of words.To divert; turn into another channel; devote to another purpose.Synonyms Overthrow, Subvert, etc. See overturn.n. In architecture, an inverted arch; specifically, the floor of the lock-chamber of a canal, which is usually in the form of an inverted arch, or the bottom of a sewer.n. In telegraphy, an inverted or reversed insulator.In chem., to convert (cane-sugar) into a mixture of glucose and fructose.In music: Of an interval, to transpose the lower tone an octave higher, so that it falls (usually) above the higher tone.Of a melody or theme, to take its intervals in order downward instead of upward, thus making a new melody, but one whose relation to the first is exact and intelligible.Of a chord, to arrange its tones in any order in which the root is not in the bass.An abbreviation of Invertebrata;of invertebrate.