| | Healthcare Industry | Medical Billing What does the medical abbreviation PW mean? PW stands for "post water." It is a term used to describe the period after a woman's water has broken, but before the baby is born. Medical Billing - Related Articles Supplements to Increase Your Energy How to Reshape a Superiority Attitude Why does the circulation system need digestive system? Mortality Rate of Coronary Artery Disease Herbal Cure for Bad Breath Definition of Hyperlipidemia Vertigo Triggers