mismenstruation en · NOUN
Etymology
From mis- + menstruation.
Meanings
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(uncountable) Abnormal menstruation.
As with vicarious mismenstruation, the abnormal cessation only requires strict attention to the general health, with such measures to restrain hemorrhage as have already been indicated.
1875, Russell Thacher Trall, The Mother's Hygienic Hand-book, page 42: