1) Catamenia 2) Flow 3) Menses 4) Menstrual disorder 5) Menstruation 6) Menstruum 7) Period 
Oligomenorrhea (or oligomenorrhoea) is infrequent (or, in occasional usage, very light) menstruation. More strictly, it is menstrual periods occurring at intervals of greater than 35 days, with only four to nine periods in a year. Also, menstrual periods should have been regularly established previously before the development of infrequent flow. T...
prolonged intervals between menstrual cycles. Menstruation is the normal cyclic bleeding from the female reproductive tract. Most women of ... [1 related articles]
(ol″ĭ-go-men″ә-re´ә) scanty or infrequent menstruation.
Infrequent menstrual periods.
Type: Term Pronunciation: ol′i-gō-men′ō-rē′ă Definitions: 1. Scanty menstruation.
Oligomenorrhea: A reduction in number of menstrual periods and/or amount of menstrual flow.
Reduction in the frequency of menstrual periods that a woman experiences. Whereas a typical menstrual cycle repeats itself every 28-35 days, a woman with this condition can expect her menstrual cycle to be prolonged.
[n] - abnormally light or infrequent menstruation
oligomenorrhea 1. A reduction in the frequency of menstruation, with cycle lengths usually exceeding 40 days. 2. Scanty, or markedly diminished, menstrual flow during menstruation. Also called relative amenorrhea or infrequent menstruation.
noun abnormally light or infrequent menstruation