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men·stru·a·tion
 menstruation
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- pronunciation:
- men
stru
eI
sh
 n
| part of speech: |
noun |
| definition 1: |
the usu. periodic process of discharging blood, mucus, and dead cells from the mammalian uterus when the egg is not fertilized.
- similar words:
- period
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| definition 2: |
the period during which this discharge occurs, in the human female usu. four to five days at monthly intervals.
- similar words:
- period
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| derivation: |
menstruous (adj.) |
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