invert

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To turn inside out or upside down.
• intransitive verb To reverse the position, order, or condition of: synonym: reverse.
• intransitive verb To subject to inversion.
• intransitive verb To be subjected to inversion.
• noun Something inverted.
• noun One who takes on the gender role of the opposite sex.
• noun In the theory of Sigmund Freud, a homosexual person. No longer in scientific use.

from The Century Dictionary.

• noun 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.
• noun In telegraphy, an inverted or reversed insulator.
• 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.
• An abbreviation of Invertebrata;
• of invertebrate.
• 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.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Chem.) Subjected to the process of inversion; inverted; converted.
• adjective (Chem.) a variety of sugar, consisting of a mixture of dextrose and levulose, found naturally in fruits, and produced artificially by the inversion of cane sugar (sucrose); also, less properly, the grape sugar or dextrose obtained from starch. See Inversion, Dextrose, Levulose, and Sugar.
• noun (Masonry) An inverted arch.
• intransitive verb (Chem.) To undergo inversion, as sugar.
• transitive verb To turn over; to put upside down; to upset; to place in a contrary order or direction; to reverse
• transitive verb (Mus.) To change the position of; -- said of tones which form a chord, or parts which compose harmony.
• transitive verb obsolete To divert; to convert to a wrong use.
• transitive verb (Chem.) To convert; to reverse; to decompose by, or subject to, inversion. See Inversion, n., 10.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb transitive To turn (something) upside down or inside out.
• verb transitive, music To move (the root note of a chord) up or down an octave, resulting in a change in pitch.
• noun archaic A homosexual man.
• noun architecture An inverted arch (as in a sewer). *
• noun civil engineering The lowest point inside a pipe at a certain point.
• noun civil engineering An elevation of a pipe at a certain point along the pipe.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb make an inversion (in a musical composition)
• verb turn inside out or upside down
• verb reverse the position, order, relation, or condition of