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 (dī-ĕs′trəs) also di·es·trum (-trəm)
In most female mammals, a short period of sexual quiescence between two estrus periods, during which the uterus is prepared for a fertilized ovum.

di·es′trous adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.diestrous - (of animals that have several estrous cycles in one breeding season) in a period of sexual inactivity
anestrous - (of lower mammals) not in a state of estrus; not in heat; "an anestrous bitch"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
These morphological changes due to the desquamation depict four major phases of the oestrus cycle which include the Proestrus (P), Oestrous (O), Metestrous (M) and Diestrous (D) (Long & Evans, 1922).
Findings from several animal studies suggest that OP exposures could cause disturbances in estrous cycles, resulting in a decrease in the number of estrous cycles and in the duration of proestrus, estrus, and metestrous with a concomitant prolonged diestrous phase, which may ultimately result in reduced fertility (Nanda and Kaliwal 2003; Rao and Kaliwal 2002; Tello et al.
Females were euthanized during diestrous. SE and C females had regular 4- to 5-day estrous cycles, indicating that the programming by tobacco smoke exposure does not affect the reproductive cycle (9).
Based on vaginal cytology, females were divided into two groups: diestrous (those in diestrus and metaestrus) and estrous (those in estrus and proestrus).
Moreover, prolactin receptor immunoreactivity or mRNA for prolactin receptors is detected within the PVN, ventromedial hypothalamic nucleus, and supraoptic nucleus only during lactation, but not in diestrous females [89].
We observed changed ovarian function that was affirmed by the lack of the normal regular estrous cycle (proestrous, estrous, metaestrous and diestrous stages).
Most of the control and hydrogen groups' mice exhibited normal estrous cycles, with ordered proestrus, estrus, metestrus, and diestrous phases.
The enrolled rats were in all menstrual cycles (proestrous, estrous, diestrous, metestrous).
Galeeva and Tuohimaa [46] found that exploration of open arms is reduced in diestrous females, suggesting that female mice are more anxious when their E2 levels are low.
The estrous cycle of female Lewis rats lasts 4-5 d, as in other strains (10), and in a 5 day cycle consists of three distinct phases: proestrous (~1 d), estrous (~1 d) and diestrous (-2-3 d).