| Noun | 1. | inversion - the layer of air near the earth is cooler than an overlying layer | |
| 2. | 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) | |
| 3. | inversion - a chemical process in which the direction of optical rotation of a substance is reversed from dextrorotatory to levorotary or vice versa | |
| 4. | inversion - (genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed | |
| 5. | inversion - the reversal of the normal order of wordsrhetorical device - a use of language that creates a literary effect (but often without regard for literal significance) | |
| 6. | inversion - (counterpoint) a variation of a melody or part in which ll ascending intervals are replaced by descending intervals and vice versacounterpoint - a musical form involving the simultaneous sound of two or more melodies variation - a repetition of a musical theme in which it is modified or embellished | |
| 7. | inversion - a term formerly used to mean taking on the gender role of the opposite sex | |
| 8. | inversion - turning upside down; setting on endmovement, motility, motion, move - a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility" overturn, turnover, upset - the act of upsetting something; "he was badly bruised by the upset of his sled at a high speed" | |
| 9. | inversion - the act of turning inside outmovement, motility, motion, move - a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility" | |