Energy-dependent forward movement of the sperm, allowing it to reach and penetrate the egg.
Note: Decreased sperm motility is an indicator of reduced
fertility.
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 781 (https://doi.org/10.1515/pac-2015-1202)