periodoscope
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English
[edit]Etymology
[edit]Noun
[edit]periodoscope (plural periodoscopes)
- (medicine) A table or other means of calculating the menstrual cycle.[1]
References
[edit]- ^ 1839, Robley Dunglison, “PERIODOSCOPE”, in Medical Lexicon. A New Dictionary of Medical Science, […], 2nd edition, Philadelphia, Pa.: Lea and Blanchard, successors to Carey and Co., →OCLC:
- “periodoscope”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.