Definition of vein
(Entry 1 of 2)
1 : blood vessel especially : any of the tubular branching vessels that carry blood from the capillaries toward the heart
2a : any of the vascular bundles forming the framework of a leaf
b : any of the thickened cuticular ribs that serve to stiffen the wings of an insect
3a : a narrow water channel in rock or earth or in ice
b(1) : lode sense 2
(2) : a bed of useful mineral matter
c : lode sense 3
4 : something suggesting veins (as in reticulation) specifically : a wavy variegation (as in marble)
5a : a distinctive mode of expression : style stories in a romantic vein
b : a distinctive element or quality : strain introduced a welcome vein of humor
c : a line of thought or action
6a : a special aptitude
inherited an artistic vein
b : a usually transitory and casually attained mood
c : top form
thou troublest me; I am not in the vein— William Shakespeare
vein
verbveined; veining; veins
Definition of vein (Entry 2 of 2)
: to pattern with or as if with veins
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Time Traveler for vein
The first known use of vein was in the 14th century
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