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English definition of “vein”

vein

noun uk   /veɪn/ us  

vein noun (TUBE)

C1 [C] a tube that carries blood to the heart from the other parts of the body [C] the frame of a leaf or an insect's wing

vein noun (LAYER)

[C] a narrow layer of a substance that forms in or fills a crack in rock: A rich vein of iron ore was found in the hillside. [S] a particular quality or characteristic: A vein of satirical anger runs through all his work. In its bid to be elected, the party is attempting to tap (= use) an underlying vein of nationalism in the country.

vein noun (MOOD)

[S or U] a style or a temporary mood: The opening scene is very violent, and the rest of the film continues in (a) similar vein. After laughing over the photo, they began to talk in (a) more serious vein about the damaging effect it could have on his career.
(Definition of vein from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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