Climacteric: Series of symptoms caused by a deficiency of estrogens and often associated with menopause.

Endocrinal: Concerning the endocrine system, its glands and secretions, which pass directly into the blood stream.

Endometrium: Inner lining of the uterus.

HRT (Hormone Replacement Therapy): Under a doctor's supervision, administration of hormones (estrogens and progesterone, which are no longer produced by the ovary) during menopause.

Ishikawa test: A scientifically recognised test that assesses the affinity of a substance with estrogenic receptors. The greater the affinity with estrogenic receptors, the greater the estrogenic activity.

Kupperman index: Score obtained by answering a questionnaire administered by a doctor evaluating the intensity of discomfort caused by menopause. One of these discomforts is hot flashes.

Estrogen: A hormone secreted by the ovary that plays a role in ovulation, depending on its concentration in the blood stream.

Oocyte: The immature ovum cell.

Osteoporosis: Bone disease caused by decreased bone mineral density. (Very frequent in postmenopausal women, it can lead to vertebral collapse and hip fractures)

Ovarian follicle reserve: Capacity of the ovary to produce eggs, determined at birth and which diminishes with age until it is completely depleted at menopause.

Perimenopause: Perimenopause refers both to the period of disorders in the menstrual cycle before menopause as well as the year after menstruation ceases.

Phytoestrogen: estrogen derived from plants. Progestin Natural or synthetic substance that has effects similar to progesterone, the female hormone secreted during the second stage in the menstrual cycle and pregnancy.