spermatogenesis
the origin and development of spermatozoa.
Origin of spermatogenesis
1Other words from spermatogenesis
- sper·ma·to·ge·net·ic [spur-muh-toh-juh-net-ik, sper-mat-oh-], /ˌspɜr mə toʊ dʒəˈnɛt ɪk, spərˌmæt oʊ-/, adjective
Words Nearby spermatogenesis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use spermatogenesis in a sentence
spermatogenesis of Caloptenus femur-rubrum and Cicada tibicen.
Studies in Spermatogenesis (Part 1 of 2) | Nettie Maria Stevens
British Dictionary definitions for spermatogenesis
/ (ˌspɜːmətəʊˈdʒɛnɪsɪs) /
the formation and maturation of spermatozoa in the testis: See also spermatocyte (def. 1)
Derived forms of spermatogenesis
- spermatogenetic (ˌspɜːmətəʊdʒəˈnɛtɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for spermatogenesis
[ spər-măt′ə-jĕn′ĭ-sĭs, spûr′mə-tə- ]
The formation and development of spermatozoa. Spermatogenesis in humans begins with the spermatogonium, the diploid cell that undergoes mitosis to form new spermatogonia as well as cells called primary spermatocytes. Each primary spermatocyte then undergoes the first meiotic division to produce two secondary spermatocytes. Each secondary spermatocyte undergoes the second meiotic division to produce two nonmotile cells called spermatids. The four spermatids then develop flagella and become sperm. Since some of the original spermatogonia replace themselves, the males are able to produce large numbers of sperm continuously after sexual maturity.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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