a stage of the menstrual cycle, lasting about two weeks, from ovulation to the beginning of the next menstrual flow.
- Compare follicular phase.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use luteal phase in a sentence
Then it drops sharply, and rises again to a gentler peak during the luteal phase.
This will tell you more precisely when you’re entering the higher-hormone luteal phase of your cycle.