Wordnet 3.0
ADJECTIVE (2)
1.
of or relating to progesterone (or to a drug with effects like those of progesterone);
2.
preceding and favoring gestation;
of or relating to physiological changes associated with ovulation and formation of the corpus luteum;
WordNet (r) 3.0 (2006):
progestational
adj 1: of or relating to progesterone (or to a drug with effects
like those of progesterone)
2: preceding and favoring gestation; of or relating to
physiological changes associated with ovulation and formation
of the corpus luteum