Passage in the lower anterior abdominal wall, which in men conveys the spermatic cord and in women the round ligament of the uterus.
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 769 (https://doi.org/10.1515/pac-2015-1202)