Vein meaning

vān
(zoology) One of the thickened cuticular ribs that form the supporting network of the wing of an insect and that often carry hemolymph.
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Lode (senses 1 & 2)
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The definition of a vein is a blood vessel that is part of the circulation system through which blood is carried or a streak of something.

An example of a vein is what a nurse pricks with a needle when she needs to draw blood.

An example of a vein is an area in the earth where gold is found.

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A temporary state of mind; mood.

Speaking in a serious vein.

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(geology) A regularly shaped and lengthy occurrence of an ore; a lode.
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A long wavy strip of a different shade or color, as in wood or marble, or as mold in cheese.
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A fissure, crack, or cleft.
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A pervading character or quality; a streak.
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A more or less continuous body of minerals, igneous or sedimentary rock, etc., occupying a fissure or zone, differing in nature from the enclosing rock, and usually deposited from solution by circulating water.
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A streak or marking of a color or substance different from the surrounding material, as in marble or wood.
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To streak or mark with or as with veins.
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To branch out through in the manner of veins.
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(zoology) One of the thickened cuticular ribs that form the supporting network of the wing of an insect and that often carry hemolymph.
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Any of the blood vessels that carry blood toward the heart from the body's cells, tissues, and organs. Veins are thin-walled and contain valves that prevent the backflow of blood. All veins except the pulmonary vein carry blood with low levels of oxygen.
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A long, narrow deposit of mineral or rock that fills the void formed by a fracture or fault in another rock. The mineralogy of the host rock surrounding the vein is often altered where it is in contact with the vein because of chemical reactions between the two rock types.
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(anatomy) A blood vessel that transports blood from the capillaries back to the heart.
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(used in plural veins) The entrails of a shrimp.
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(botany) In leaves, a thickened portion of the leaf containing the vascular bundle.
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(zoology) The nervure of an insect's wing.
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A stripe or streak of a different colour or composition in materials such as wood, cheese, marble or other rocks.
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A topic of discussion; a train of association, thoughts, emotions, etc.

...in the same vein...

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The play is in a satirical vein.

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A fissure, cleft, or cavity, as in the earth or other substance.
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(botany) One of the strands of vascular tissue that form the conducting and supporting framework in a leaf or other expanded plant organ.
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To supply or fill with veins.
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To mark or decorate with veins.
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Any of the bundles of vascular tissue forming the framework of a leaf blade.
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To supply or fill with veins.
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One of the narrow, usually branching tubes or supporting parts forming the framework of an insect's wing or a leaf. Veins in insect wings carry hemolymph and contain a nerve. Veins in leaves contain vascular tissue, with the xylem usually occurring on the upper side of the vein (bringing in water and nutrients) and the phloem on the lower side (carrying away food).
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Any of the riblike supports strengthening the membranous wings of an insect.
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Origin of vein

  • Middle English veine from Old French from Latin vēna

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English < Old French veine < Latin vÄ“na (“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, from vehere (“to carry, convey").

    From Wiktionary