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Open English Wordnet Nouns (n) inversion the layer of air near the earth is cooler than an overlying layer
(n) inversion abnormal condition in which an organ is turned inward or inside out (as when the upper part of the uterus is pulled into the cervical canal after childbirth)
(n) inversion a chemical process in which the direction of optical rotation of a substance is reversed from dextrorotatory to levorotary or vice versa
(n) inversion (genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed
(n) inversion (counterpoint) a variation of a melody or part in which ascending intervals are replaced by descending intervals and vice versa