a valley widening is a widening in a valley usually near a bluff.

Well it depends if you are having an orgasm or not. If you are its narrowing, if not its widening.

Aortic dilation is the widening of the aorta. This widening could be an aortic aneurysm.

Financial Widening refers to the growth in number and size of Financial Institutions in an economy.

Dilation of a blood vessel is the term for physiologic widening of the vessel. Abnormal widening of the blood vessel through a weakening of the wall is known as aneurysm.

Dilation of a blood vessel means widening of the vessel.