[ kə'pɪləri ]
■ noun ( plural capillaries )
1》 Anatomy any of the fine branching blood vessels that form a network between the arterioles and venules.
2》 (also ~ tube ) a tube with an internal diameter of hair-like thinness.
■ adjective relating to capillaries or capillarity.
Origin
C17: from L. capillaris , from capillus 'hair', influenced by OFr. capillaire .