1. Plural of estrum; a recurrent period of sexual receptivity in female mammals, characterized by physiological and behavioral changes.
Usage: Also spelled 'oestrum' in British English; Technical/biological term; Often used interchangeably with 'estrus'

Examples

• The veterinarian explained that estrums in dogs typically occur twice per year.
• During estrums, female mammals exhibit specific behavioral patterns to attract mates.
• Tracking estrums is important for breeding programs in livestock management.
• The hormonal changes during estrums prepare the reproductive system for potential pregnancy.
• Researchers studied the frequency and duration of estrums across different species.