Luteal is a term used to describe a phase of the menstrual cycle in which the corpus luteum, a temporary endocrine gland, is formed in the ovary. However, there are several synonymous terms that can be used instead. For instance, the luteal phase can simply be referred to as the second half of the menstrual cycle. Additionally, it can be called the postovulatory phase, since it occurs after ovulation. It can also be described as the progesterone-dominant phase, which reflects the fact that the corpus luteum produces progesterone during this time. Ultimately, there are several words that can be used interchangeably with luteal, depending on the context and audience.