venosity

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The quality or condition of being venous or venose.

Century Dictionary and Cyclopedia

1. n. Venose state, quality, or character.
2. n. A condition in which the arterial blood is imperfectly oxygenated, and partakes of some of the characteristics of venous blood.
3. n. A disturbance of equilibrium between the two circulatory systems, the veins being unduly filled at the expense of the arteries; general venous congestion.

Wiktionary

1. n. The quality of being venous or venose.
2. n. A condition in which the circulation is retarded, and the entire mass of blood is less oxygenated than it normally is.

GNU Webster's 1913

1. n. The quality or state of being venous.
2. n. (Med.) A condition in which the circulation is retarded, and the entire mass of blood is less oxygenated than it normally is.