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Chambers 20th Century Dictionary (0.00 / 0 votes) Rate this definition: Nave nÄv, n. the middle or main body of a church, distinct from the aisles or wings.â
A hollow muscular organ that receives the blood from the veins and propels it into the arteries. In mammals it is divided by a musculomembranous septum into two halves-right or venous and left or arterial-each of which consists of a receiving chamber (atrium) and an ejecting chamber (ventricle).