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Noun, pl. veins (Anatomy) 1. Blood vessels that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. ( 2. A blood vessel that transports blood from the capillaries back to the heart. ( 3. (used in plural veins) The entrails of a shrimp. ( (Botany) 1. In leaves, a thickened portion of the leaf containing the vascular bundle ( One of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other expanded plant organ. Also called nervure ( 2. A slender rib running through a leaf or bract, typically dividing or branching, and containing a vascular bundle. (Google Dictionary) (Zoology) 1. The nervure of an insect’s wing (; One of the horny ribs that stiffen and support the wing of an insect. Also called nervure ( 2. A hardened branching rib that forms part of the supporting framework of a wing, consisting of an extension of the tracheal system; a nervure. (Google Dictionary) (Geology) 1. A regularly shaped and lengthy occurrence of an ore; a lode ( Other definitions 1. A fissure, crack, or cleft ( 2. A fracture in rock containing a deposit of minerals or ore and typically having an extensive course underground....

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/ˈventrəl/ Adjective 1. Related to the abdomen or stomach. ( 2. (Anatomy) On the front side of the human body, or the corresponding surface of an animal, usually the lower surface. ( 3. An anatomical term referring to the bottom portion of either foot and/or hand. ( 4. (Anatomy) Relating to, situated on, or directed toward the belly surface. ( 5. (Anatomy) Denoting a position or region situated or close to the anterior. ( 6. (Botany) Adaxial; relating to the region facing the axis; pertaining to the lower or inner surface of a plant organ. ( Word origin: From Latin ventrālis, from venter (“belly,...

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/ˈvɜrtɨbrət/ Noun, pl. vertebrates 1. Zoology One of the vertebrata; an animal with a backbone. (   Adjective 1. Having vertebrae; having a backbone or spinal column. ( 2. Belonging or pertaining to the Vertebrata (or Craniata), a subphylum of chordate animals, comprising those having a brain enclosed in a skull or cranium and a segmented spinal column; a major taxonomic group that includes mammals, birds, reptiles, amphibians, and fishes....

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