Female gamete after completion of the second meiotic division.
Note: The term is often loosely applied to secondary
oocytes and early embryos.
See also: ovum
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 747 (https://doi.org/10.1515/pac-2015-1202)