An anovulatory cycle is a menstrual cycle where anovulation takes place, so no egg cell is released from the ovary.
Sources:
- Sleigh M. Anovulatory Cycle. In: Goldstein S., Naglieri J.A. (eds) Encyclopedia of Child Behavior and Development. Springer, Boston, MA. https://link.springer.com/referenceworkentry/10.1007%2F978-0-387-79061-9_148