estral cycle


Also found in: Medical.
Related to estral cycle: estrous cycle

estral cycle

n.
The estrous cycle.
References in periodicals archive ?
The rationale for choosing these schedule of plant administration was that for males, the period of spermatozoon maturation is about 60 days and for females, we derived an exposure for a minimum of eight estral cycle periods (each estral cycle is 4 days).