spermatogenesis

noun

sper·​mato·​gen·​e·​sis (ˌ)spər-ˌma-tə-ˈje-nə-səs 

: the process of male gamete formation including formation of a spermatocyte from a spermatogonium, meiotic division of the spermatocyte, and transformation of the four resulting spermatids into spermatozoa

spermatogenic

(ˌ)spər-ˌma-tə-ˈje-nik 

adjective

Examples of spermatogenesis in a Sentence

Recent Examples on the Web

Contraceptives acting on spermatogenesis take a few weeks to kick in, and fertility takes a few weeks to return when a man stops using them. — Ana Castelain, Bloomberg, 28 Jan. 2026

This process, called spermatogenesis, begins at puberty and continues throughout a man’s life. — Daryl Austin, USA Today, 2 May 2026

Scientists have been attempting to produce sperm outside the body, known as in vitro spermatogenesis, for almost a century. — Emily Mullin, Wired News, 23 Apr. 2026

This condition is primarily caused by genetic defects that severely disrupt or halt the complex process of sperm production, known as spermatogenesis. — Mrigakshi Dixit, Interesting Engineering, 13 Oct. 2025

Word History

Etymology

New Latin

First Known Use

1881, in the meaning defined above

Rhymes for spermatogenesis

• angiogenesis
• atherogenesis
• carcinogenesis
• embryogenesis
• gametogenesis
• organogenesis
• osteogenesis
• parthenogenesis
• steroidogenesis
• tumorigenesis
• agenesis
• dysgenesis

Kids Definition

spermatogenesis

noun

sper·​mato·​gen·​e·​sis (ˌ)spər-ˌmat-ə-ˈjen-ə-səs 

plural spermatogeneses

-ə-ˌsēz

: the process of male gamete formation including meiosis and formation of sperm cells

Medical Definition

spermatogenesis

noun

sper·​mato·​gen·​e·​sis (ˌ)spər-ˌmat-ə-ˈjen-ə-səs 

plural spermatogeneses -ˌsēz 

: the process of male gamete formation including formation of a primary spermatocyte from a spermatogonium, meiotic division of the spermatocyte, and transformation of the four resulting spermatids into spermatozoa