Definition of "Vein" :
noun: one of the horny ribs that stiffen and support the wing of an insect
noun: a blood vessel that carries blood from the capillaries toward the heart
"All veins except the pulmonary vein carry unaerated blood."
noun: a distinctive style or manner
"He continued in this vein for several minutes."
noun: a layer of ore between layers of rock
noun: any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ
verb: make a veinlike pattern