vein

Any of the membranous tubes that form a branching system and carry blood to the heart from the cells, tissues, and organs of the body.

A blood vessel of any kind; a vein or artery.

One of the strands of vascular tissue that form the conducting and supporting framework in a leaf or other expanded plant organ.

One of the thickened cuticular ribs that form the supporting network of the wing of an insect and that often carry hemolymph.

A regularly shaped and lengthy occurrence of an ore; a lode.

A long wavy strip of a different shade or color, as in wood or marble, or as mold in cheese.

A fissure, crack, or cleft.

A pervading character or quality; a streak.