Definition of prereduction in English:

prereduction

noun

  • 1The halving of the chromosome number by the separation of homologous chromosomes at the first of the two divisions of meiosis.

  • 2Separation of the different alleles at a particular heterozygous locus in the first division of meiosis.

  • 3Prior chemical reduction.

Origin

Early 20th century; earliest use found in Proceedings of the Academy of Natural Sciences of Philadelphia. From pre- + reduction, after German Praereduction (E. Korschelt& K. Heider Lehrb. der vergleichenden Entwicklungsgeschichte der wirbellosen Thiere (Allgemeiner Theil) II. vi. 586).

Pronunciation

prereduction

/ˌpriːrɪˈdʌkʃn/