Amenorrhoeic is a medical term that refers to the absence of menstrual periods in females. Some synonyms that can be used to describe amenorrhoeic include anovulatory, as it signifies a lack of ovulation, and oligomenorrhea, which describes infrequent menstruation. Another synonym is hypomenorrhea, which describes light menstrual flow. Another term to describe this condition is secondary amenorrhea, which means that menstruation has stopped for at least three months after normal menstrual cycles. Other synonyms include menstrual suppression, menstrual cessation, and menstrual disorder. These terms are often used interchangeably, depending on the context, to describe conditions related to the absence or alteration of menstrual periods.