noun \ˌā-ˌme-nə-ˈrē-ə, ˌä-\

Definition of AMENORRHEA

:  abnormal absence or suppression of menses
amen·or·rhe·ic \-ˈrē-ik\ adjective


New Latin, from a- + Greek mēn month + New Latin -o- + -rrhea — more at moon
First Known Use: circa 1771


noun    (Medical Dictionary)

Medical Definition of AMENORRHEA

: abnormal absence or suppression of menstruation—see primary amenorrhea, secondary amenorrhea
amen·or·rhe·ic or chiefly British amen·or·rhoe·ic \-ˈrē-ik\ adjective

Variants of AMENORRHEA

amen·or·rhea or chiefly British amen·or·rhoea \ˌā-ˌmen-ə-ˈrē-ə, ˌäm-ˌen-\


noun    (Concise Encyclopedia)

Lack of menstruation. Signs of primary amenorrhea (failure to start menstruating by age 16) include infantile reproductive organs, lack of breasts and pubic hair, dwarfism, and deficient muscle development. In secondary amenorrhea (abnormal cessation of cycles once started), the genitals atrophy and pubic hair diminishes. Not itself a disease, amenorrhea reflects a failure in the balance among the hypothalamus, pituitary gland, ovaries, and uterus; tumours, injuries, or diseases of these can lead to amenorrhea. Other causes include systemic diseases, emotional shock, stress, hormone over- or underproduction, anorexia nervosa, absence of ovaries or uterus, pregnancy, lactation, and menopause. Infrequent menstruation or amenorrhea not resulting from organic disease is not harmful.


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