Venous (adjective)

1. Relating to or of the nature of a vein or veins.
2. Relating to or being blood returning to the heart through the veins.

Origin:

From the latin word "venosus" meaning "veiny" or "full of veins".

Examples:

1. The venous system of the body is responsible for returning blood to the heart.
2. The venous blood from the body's extremities is cooled by the surrounding air before returning to the heart.
3. The physician took a sample of venous blood to test for glucose levels.
4. He suffered from a venous insufficiency, preventing proper blood flow to his legs.
5. The venous pressure was measured to check for any abnormalities.