Question

what is veins in short ​

Answer 1

Answer:

Veins are a type of blood vessel that return deoxygenated blood from your organs back to your heart. These are different from your arteries, which deliver oxygenated blood from your heart to the rest of your body. Deoxygenated blood that flows into your veins is collected within tiny blood vessels called capillaries.

Answer 2

$\huge\mathcal\color{teal} Answer :-$

In short -

Veins are the blood vessels. Most veins carry deoxygenated blood towards the heart from the body parts.

Hope it helps !