noun
1.A layer of the atmosphere in which temperature increases with height.
‘In the inversion layer, temperature increases with height, often at a rate of more than 10°C per km.’
‘It was much more pleasant up here above the inversion layer and I could relax and enjoy the view of the great scenery.’
2.A reaction causing a change from one optically active configuration to the opposite configuration, especially the hydrolysis of dextrose to give a laevorotatory solution of fructose and glucose.
‘If the bond between these two sugars is broken, free glucose and fructose result, a reaction termed inversion.’
‘In its simplest form, this is a one-step polymerization reaction involving glycosyl transfer by inversion of configuration at the anomeric carbon.’
3.A reversal of the normal decrease of air temperature with altitude, or of water temperature with depth.
‘A weather inversion in the area meant smoke hovered close to the ground Monday, causing visibility problems for traffic and aircraft.’
‘Slow moving or static high pressure areas with their temperature inversions typify these conditions and cause rising pollution if they enclose a source of pollution.’
4.A transformation in which each point of a given figure is replaced by another point on the same straight line from a fixed point, especially in such a way that the product of the distances of the two points from the centre of inversion is constant.
‘When examining symmetry in the three-dimensional world, there are four types of symmetry operations to consider: rotation, reflection, roto-reflection and inversion.’
5.A transposition in the relative numbers of atoms, molecules, etc. occupying particular energy levels.
‘The nature of the active medium also determines how the energy to cause the population inversion is supplied.’
‘This requires a population inversion of atoms that are in excited states, which is maintained by ‘pumping ‘the cavity externally.’’
6.An inverted interval, chord, or phrase.
‘Version six is an inversion of original material for the right hand with a polyrhythmic left-hand accompaniment.’
‘The V7 and IV chords in standard inversions are quickly introduced, and the remainder of the book generally uses the hands together with chords accompanying a single-line melody.’
7.Homosexuality.
8.Reversal of the normal order of words, typically for rhetorical effect but also found in the regular formation of questions in English.
‘One of its little peculiarities is that along with front placement of the adverbial goes inversion of main verb and subject.’
‘Semantic inversion, is the reversal of the meaning of a term.’
9.The action of inverting something or the state of being inverted.
‘the inversion of the normal domestic arrangement’
‘an inversion of traditional customer–supplier relationships’
10.The action or practice of relocating a multinational company’s legal residence to a jurisdiction where taxes are levied at a lower rate.
‘since the company maintains a franchisee model, it is a viable target for inversion’
‘administration officials admit that their new effort to deter corporate inversions won’t actually stop the practice’
11.The interchanging of numerator and denominator of a fraction, or antecedent and consequent of a ratio.
‘We then examined solution procedures and latencies in an effort to determine whether children used inversion or other principles spontaneously as they solved these novel arithmetic problems.’
‘Thus, when Multiplication / Division inversion problems are encountered, only part of the inverse relationship is easily accessible.’
12.The process of finding a quantity, function, etc. from a given one such that the product of the two under a particular operation is the identity.
13.The process of finding the expression which gives a given expression under a given transformation.
14.The process of inverting an interval, chord, or phrase.
‘In fact, the inversion of these intervals forms the basis of the entire accompaniment for Wistful Memories, and the bluesy Swingetude is based almost exclusively on these intervals.’
‘This does not mean, however, that negative inversion is less common, or indeed less important as a geological process.’
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noun
‘In the inversion layer, temperature increases with height, often at a rate of more than 10°C per km.’
