Definition of arteriole in English:

arteriole

noun

Anatomy
  • A small branch of an artery leading into capillaries.

    • ‘Considerable congestion of pulmonary arteries, arterioles, veins, venules, and alveolar capillaries accompanied by vascular engorgement was present in four cases.’
    • ‘Lesions present in the peritubular capillaries, arterioles and renal tubules were recorded.’
    • ‘These branches become smaller and are differentiated into three distinct regions: pulp arterioles, sheathed arterioles, and terminal capillaries.’
    • ‘Capillaries are formed as a complex system of branching blood vessels between arterioles and venules (microscopic veins) Those near the arteries are at a higher pressure than those near veins.’
    • ‘The bronchi and bronchioles did not show epithelial changes, and the pulmonary arteries and arterioles were normal in appearance.’

Origin

Mid 19th century from French artériole, diminutive of artère (see artery).

Pronunciation

arteriole

/ɑːˈtɪərɪəʊl/