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- Dictionaryvein/veɪn/
noun
- 1. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood towards the heart.
- 2. a fracture in rock containing a deposit of minerals or ore and typically having an extensive course underground: "gold-bearing quartz veins" Similar
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Learn the various meanings and uses of the word vein, from blood vessel to style of expression. See synonyms, examples, etymology, and related articles.
Vein. Structure of a vein, which consists of three main layers; an outer layer of connective tissue, a middle layer of smooth muscle, and an inner layer lined with endothelium. Veins (/ veɪn /) are blood vessels in the circulatory system of humans and most other animals that carry blood towards the heart.
VEIN definition: 1. a tube that carries blood to the heart from the other parts of the body 2. the frame of a leaf…. Learn more.
A vein is a blood vessel that carries blood to the heart, or a similar structure in plants or insects. Learn more about the different types and functions of veins, and see how to use the word in sentences.
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VEIN meaning: 1. a tube that carries blood to the heart from the other parts of the body 2. the frame of a leaf…. Learn more.
12 meanings: 1. any of the tubular vessels that convey oxygen-depleted blood to the heart → Compare pulmonary vein, artery .... Click for more definitions.
Definition of vein noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.