fixation

From Old French fixation.

• (US) IPA^(key): /fɪksˈeɪʃən/
• Rhymes: -eɪʃən

fixation (countable and uncountable, plural fixations)

1. The act of fixing.
2. The state of being fixed or fixated.
3. The act of uniting chemically with a solid substance or in a solid form; reduction to a non-volatile condition; -- said of volatile elements.
4. The act or process of ceasing to be fluid and becoming firm.
5. In metals, a state of resistance to evaporation or volatilization by heat.
6. A state of mind involving obsession with a particular person, idea, or thing.
7. (law) Recording a creative work in a medium of expression for more than a transitory duration, thereby satisfying the "fixation" requirement for the purposes of copyright law.

   In order to obtain copyright on a recording in the United States, the recording must have been reduced to fixation on or after February 15, 1972.

8. (genetics) The change in a gene pool from a situation where there exists at least two variants of a particular gene (allele) to a situation where only one of the alleles remains.

• (state of being fixed): fixedness

• (act of fixing): movement, change

Fixation (population genetics) on Wikipedia.Wikipedia

fixer +‎ -ation

• IPA^(key): /fik.sa.sjɔ̃/

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fixation f (plural fixations)

1. fixation

   Tu ferais bien de vérifier les fixations avant de partir.

2. (psychology, informal) fixation, obsession

   Synonyms: fixette, obsession

• “fixation” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).