hormone replacement therapy 
(abbreviation HRT)
noun [mass noun]
Treatment with oestrogens with the aim of alleviating menopausal symptoms or osteoporosis.The standard treatment of ovarian failure and hot flashes has been hormone replacement therapy....
- Sixteen of these women completed five years of treatment with continuous combined hormone replacement therapy and six withdrew from the study.
- Secondly, the trials used either oestrogen alone or combination hormone replacement therapy.