[k?'p?l?ri]
¦ noun (plural capillaries)
1. Anatomy any of the fine branching blood vessels that form a network between the arterioles and venules.
2. (also capillary 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.