segregation

noun

Etymology: 1555. From Latin segregatio. Morphologically segregate + -ion.

1. The act of setting apart and organizing things based upon their characteristics.
2. The separation of people based upon race, sex, religion, or other identity in institutions.

   “The fact that one is gay or one's brother is gay […] — this has less influence on the average HK person's attention or attitude than how he or she finds a job, the way he lives and the way he eats, which is like New York or oter large cities. There tends to be a segregation between a person's private life and his job or other affairs. It does not mean that they are liberal, just that city life fosters this individualism.”

3. The setting apart in Mendelian inheritance of alleles, such that each parent passes only one allele to its offspring.
4. Separation from a mass, and gathering about centers or into cavities at hand through cohesive or adhesive attraction or the crystallizing process.
5. The separation of people (geographically, residentially, or in businesses, public transit, etc) into racial or other categories (e.g. religion, sex).
6. The separation of people (geographically, residentially, or in businesses, public transit, etc) into various categories which occurs due to social forces (culture, etc).
7. The separation of a pair of chromatids or chromosomes during mitosis and meiosis
8. Separation for practical reasons, by necessity.

   “It has long been recognised that complete segregation of control of the respective services provided by the two undertakings, and of the power supply, signalling, and tracks relating to each was desirable.”

9. The separation of a subset of prisoners from the general prison population, possibly solitary confinement.