vein

(noun) a blood vessel that carries blood from the capillaries toward the heart. Synonyms: vena, venous blood vessel. Example: "All veins except the pulmonary vein carry unaerated blood."

(noun) a distinctive style or manner. Example: "He continued in this vein for several minutes."

(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. Synonyms: nervure.

(noun) a layer of ore between layers of rock. Synonyms: mineral vein.

(noun) one of the horny ribs that stiffen and support the wing of an insect. Synonyms: nervure.

(verb) make a veinlike pattern.