| vertebral artery |
the first branch of the subclavian artery; divided into four parts
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| vertebral column |
spinal column: the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back"
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| vertical |
at right angles to the plane of the horizon or a base line; "a vertical camera angle"; "the monument consists of two vertical pillars supporting a horizontal slab"; "measure the perpendicular height" relating to or involving all stages of a business from production to distribution something that is oriented vertically erect: upright in position or posture; "an erect stature"; "erect flower stalks"; "for a dog, an erect tail indicates aggression"; "a column still vertical amid the ruins"; "he sat bolt upright" upright: a vertical structural member as a post or stake; "the ball sailed between the uprights" of or relating to different levels in a hierarchy (as levels of social class or income group); "vertical social mobility"
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| vein |
a blood vessel that carries blood from the capillaries toward the heart; "all veins except the pulmonary vein carry unaerated blood" a distinctive style or manner; "he continued in this vein for several minutes" any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ a layer of ore between layers of rock one of the horny ribs that stiffen and support the wing of an insect make a veinlike pattern
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| ventilation |
the act of supplying fresh air and getting rid of foul air a mechanical system in a building that provides fresh air; "she was continually adjusting the ventilation" public discussion: free and open discussion of (or debate on) some question of public interest; "such a proposal deserves thorough public discussion" breathing: the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
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