The large vein that carries deoxygenated blood from the body to the right atrium of the heart.

The pattern of veins in the leaves of a plant, which may be parallel, reticulate, or palmate depending on the…

A sexually transmitted infection or disease, often caused by bacteria, viruses, or parasites.

A toxic substance produced by certain animals like snakes, spiders, or scorpions, used to immobilize or kill prey and for…

Describing an organism that produces venom, which can be injected into other organisms to deliver toxins.

The abdominal or lower side of an organism, particularly in relation to the body or the embryo in animals.

Relating to the abdomen or the lower part of the body in animals.

The portion of the aorta that carries oxygenated blood from the heart to the rest of the body in vertebrates.

A chamber of the heart that pumps blood to the lungs (right ventricle) or to the rest of the body…

Describing a position that is towards both the belly (ventral) and the side (lateral) of an organism.