Definitions
1.nounThe action of inverting.
2.nounBeing upside down, in an inverted state.
3.nounBeing in a reverse sequence, in an inverted state.
4.nounThe move of one pitch in an interval up or down an octave.
5.nounThe reversal of an interval.
6.nounThe reversal of the pitch contour.
7.nounThe reversal of a pitch class succession, such as a contrapuntal line or melody.
8.nounThe subtraction of pitch classes in a set from twelve, which maps intervals onto their complements with respect to 0, and preserves interval classes, symbolized IX (X being the transposition that is inverted.).
9.nounA segment of DNA in the context of a chromosome that is reversed in orientation relative to a reference karyotype or genome
10.nounAn increase of air temperature with increase in altitude (the ground being colder than the surrounding air). When an inversion exists, there are no convection currents and wind speeds are below 5 knots. The atmosphere is stable and normally is considered the most favorable state for ground release of chemical agents.
11.noun(grammar) Deviation from standard word order by putting the predicate before the subject. It takes place in questions with auxiliary verbs and in normal, affirmative clauses beginning with a negative particle, for the purpose of emphasis."Inversion takes place in the sentence 'Is she here?' — 'is', the predicate, is before 'she', the subject."
12.nounAn operation on a group, analogous to negation.
13.nounHomosexuality, particularly in early psychoanalysis.