Amenorrhea is an alternative form of amenorrhoea.
As nouns the difference between amenorrhea and amenorrhoea
is that amenorrhea is (american spelling) while amenorrhoea is (medicine) absence of menstrual discharge.
amenorrhoea
Alternative forms
* amenorrhea
*
Noun
(medicine) Absence of menstrual discharge.
Derived terms
* amenorrhoeal
* amenorrhoeic