Definition of oligomenorrhoea in English:
oligomenorrhoea
(also oligomenorrhea)
Pronunciation /ˌɒlɪɡə(ʊ)ˌmɛnəˈriːə/
noun
Medicine
Abnormally light menstrual flow (now rare); infrequent menstruation; prolongation of the length of the menstrual cycle.
Origin
Mid 19th century. From oligo- + menorrhoea.