postestrus

[pōst-ĕstrəs]
n.
  1. The period in the estrus cycle following estrus, characterized by the growth of the corpus luteum and physiological changes related to the production of progesterone.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.