<p><strong>Noun</strong></p><ul><li>the act of fixing or the state of being fixed.</li><li>Chemistry. reduction from a volatile or fluid to a stable or solid form.</li><li>the process of converting atmospheric nitrogen into a useful compound, as a nitrate fertilizer.</li><li>Photography. the process of rendering an image permanent by removal of light-sensitive silver halides.</li><li>Psychoanalysis. a partial arrest of emotional and instinctual development at an early point in life, due to a severe traumatic experience or an overwhelming gratification.</li><li>a preoccupation with one subject, issue, etc.; obsession: All her life she had a fixation on stories of violent death.</li></ul>