monoestrous
/ˌmɑnoʊˈɛstrəs/
adjective
- Having only one period of sexual receptivity (estrus) per breeding season or per year, typically used to describe certain mammals.
- Dogs are monoestrous, usually coming into heat only once every six to twelve months.
- Many wild canids are monoestrous, which helps control the timing of their pups' birth.
- The veterinarian explained that because the fox is monoestrous, it has a very narrow window for mating each year.