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premen'strual syn'drome

a complex of physical and emotional changes, including depression, irritability, appetite changes, bloating and water retention, breast soreness, and changes in muscular coordination, one or more of which may be experienced in the several days before the onset of menstrual flow. Abbr.: PMS Also called premen'strual ten'sion.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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