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capillary

Pronunciation: /kəˈpɪləri/

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Definition of capillary

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 which has an internal diameter of hair-like thinness.

adjective

[attributive]
  • relating to capillaries or capillarity: capillary blood

Origin:

mid 17th century: from Latin capillaris, from capillus 'hair', influenced by Old French capillaire

capillary in other Oxford dictionaries

Definition of capillary in the US English dictionary

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