seg·re·ga·tion (s?g?r?-g??sh?n)n.1. The act or process of segregating or the condition of being segregated.2. The policy or practice of separating people of different races, classes, or ethnic groups, as in schools, housing, and public or commercial facilities, especially as a form of discrimination.3. Genetics The separation of paired alleles or homologous chromosomes, especially during meiosis, so that the members of each pair appear in different gametes.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.segregation (?s??r???e???n) n1. the act of segregating or state of being segregated2. (Sociology) sociol the practice or policy of creating separate facilities within the same society for the use of a minority group3. (Genetics) genetics the separation at meiosis of the two members of any pair of alleles into separate gametes. See also Mendel’s laws4. (Metallurgy) metallurgy the process in which a component of an alloy or solid solution separates in small regions within the solid or on the solid’s surface ?segre?gational adjCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014seg?re?ga?tion (?s?g r??ge? ??n) n. 1. the act or practice of segregating. 2. the state of being segregated. 3. something segregated. 4. the separation of allelic genes into different gametes during meiosis. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.