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| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
vein (vān)
n.
Any of the branching blood vessels carrying blood toward the heart. All veins except the pulmonary vein carry dark unaerated blood.
A blood vessel.
vein (vān) Pronunciation Key
venous adjective (vē'nəs) |
Blood vessels that return blood from the body tissues to the heart. (Compare arteries; see circulatory system.)