Inversion
Definition of Inversion
In`ver´sion n.  1.    1.  The act of inverting, or turning over or backward, or the state of being inverted.   2.  A change by inverted order; a reversed position or arrangement of things; transposition.   3.  (Mil.) A movement in tactics by which the order of companies in line is inverted, the right being on the left, the left on the right, and so on.   4.  (Math.) A change in the order of the terms of a proportion, so that the second takes the place of the first, and the fourth of the third.   5.  (Geom.) A peculiar method of transformation, in which a figure is replaced by its inverse figure. Propositions that are true for the original figure thus furnish new propositions that are true in the inverse figure. See Inverse figures, under Inverse.   6.  (Gram.) A change of the usual order of words or phrases; as, "of all vices, impurity is one of the most detestable," instead of, "impurity is one of the most detestable of all vices."   7.  (Rhet.) A method of reasoning in which the orator shows that arguments advanced by his adversary in opposition to him are really favorable to his cause.   8.  (Mus.) Said of intervals, when the lower tone is placed an octave higher, so that fifths become fourths, thirds sixths, etc.   9.  (Geol.) The folding back of strata upon themselves, as by upheaval, in such a manner that the order of succession appears to be reversed.   10.  (Chem.) The act or process by which cane sugar (sucrose), under the action of heat and acids or enzymes (as diastase), is broken or split up into grape sugar (dextrose), and fruit sugar (levulose); also, less properly, the process by which starch is converted into grape sugar (dextrose).   11.  (Meteorology) A reversal of the usual temperature gradient of the atmosphere, in which the temperature increases with increased altitude, rather than falling. Called also temperature inversion.   12.  (Electricity) The conversion of direct current into alternating current; the inverse of rectification. See inverted rectifier.   13.  (Genetics) A portion of the genome in which the DNA has been turned around, and runs in a direction opposite to its normal direction, and consequently the genes are present in the reverse of their usual order. 
Related Words
aboutface, addition, approximation, differentiation, division, equation, evolution, extrapolation, integration, interpolation, involution, multiplication, notation, practice, proportion, reduction, reversal, reverse, reversion, subtraction, transformation, turn, turnabout, turning, volteface

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