The veins on a leaf are the thin lines on it. the serrated edges and veins of the feathery leaves. Vessel that carries blood to the heart. Except for the pulmonary veins, veins bear deoxygenated blood from capillaries, which converge into threadlike venules and then veins, finally emptying into the venae cavae (see cardiovascular system; vena cava). Blood moves through veins by contraction of the surrounding muscles. Backflow is prevented by valves in most veins' inner layer (tunica intima), which lacks the elastic membrane lining of arteries. The thin middle layer (tunica media) is mostly collagen fibres, and the thick outer layer (tunica adventitia) is mostly connective tissue. See also circulation; varicose vein
blood vessel that returns blood (from the microvasculature throughout the body) to the heart; walls are thinner and less elastic than those of an artery
one of the horny ribs that stiffen and support the wing of an insect a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary carry unaerated blood a distinctive style or manner; "he continued in this vein for several minutes"
Any of the relatively thin-walled vessels which carry blood from the tissues back to the the heart and lungs to be re-oxygenated
A narrow mass of rock intersecting other rocks, and filling inclined or vertical fissures not corresponding with the stratification; a lode; a dike; often limited, in the language of miners, to a mineral vein or lode, that is, to a vein which contains useful minerals or ores
A tubular vessel which carries blood from various parts of the body to or toward the heart
{i} blood vessel which carries blood to the heart; any blood vessel (Informal); bundle of sap-carrying vessels in plants; band of ore between rock layers; pervading quality, mood; vessels in insect wings
Any one of a series of blood vessels of the vascular system that carries blood from various parts of the body back to the heart, returning oxygen-depleted blood to the heart
a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary carry unaerated blood
= any blood vessel transporting blood to the heart Veins are carrying dark red or oxygen-deprived blood in the major body circulation and bright red oxygenated blood in the minor lung circulation
A vein of a particular quality is evidence of that quality which someone often shows in their behaviour or work. This Spanish drama has a vein of black humour running through it
A vein of a particular metal or mineral is a layer of it lying in rock. a rich and deep vein of limestone. = seam
a layer of ore between layers of rock any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ make a veinlike pattern
A streak or wave of different color, appearing in wood, and in marble and other stones; variegation
any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ
Your veins are the thin tubes in your body through which your blood flows towards your heart. Compare artery. Many veins are found just under the skin. see also varicose vein
Peculiar temper or temperament; tendency or turn of mind; a particular disposition or cast of genius; humor; strain; quality; also, manner of speech or action; as, a rich vein of humor; a satirical vein
A potentially fatal condition in which one or more thrombi (or clot) form in the predominantly the leg or, more unusually, the arm. The clot may break free from the venous wall and travel via the circulatory system to the heart or to the lungs (causing a pulmonary embolism); this condition is often caused by keeping the legs bent for long periods but can also be caused by other medical problems
a vein that accompanies the vertebral vein but passes through the foramen of the transverse process of the 7th cervical vertebra and empties into the brachiocephalic vein
one of a system of veins that drain the thoracic and abdominal walls; arises as a continuation of the right ascending lumbar vein and terminates in the superior vena cava
Deep vein thrombosis is a serious medical condition caused by blood clots in the legs moving up to the lungs. The abbreviation DVT is also used. He could have died after developing deep vein thrombosis during a flight to Sydney. DVT a serious illness which happens when a small amount of blood becomes very thick and causes the heart to stop beating properly. This sometimes happens to people who have been on long plane journeys, because they have been sitting still for so long
Either of a pair of veins in the neck, each formed by the union of the internal jugular and subclavian veins, that join to form the superior vena cava. Also called brachiocephalic vein
() From Middle English Old French Latin vēna (“a blood-vessel, vein, artery, also a watercourse, a vein of metal, a vein or streak of wood or stone, a row of trees, strength, a person's natural bent, ect.”); probable origin a pipe or channel for conveying a fluid vehere (“to carry, convey”).