venturi tube

or Ven·tu·ri tube

[ ven-toor-ee ]

noun

1. a device for measuring the flow of a fluid, consisting of a tube with a short, narrow center section and widened, tapered ends, so that a fluid flowing through the center section at a higher velocity than through an end section creates a pressure differential that is a measure of the flow of the fluid.

Venturi tube

/ vɛnˈtʃuːrI /

noun

1. physics a device for measuring fluid flow, consisting of a tube so constricted that the pressure differential produced by fluid flowing through the constriction gives a measure of the rate of flow
2. Also calledventuri a tube with a constriction used to reduce or control fluid flow, as one in the air inlet of a carburettor

Word History and Origins

Origin of venturi tube¹

Named after G. B. Venturi (1746–1822), Italian physicist whose work led to its invention

Word History and Origins

Origin of venturi tube¹

C19: named after G. B. Venturi (1746–1822), Italian physicist

Example Sentences

The lower end of this tubular body is contracted, as shown at B, so as to form what is called a venturi tube.

From Project Gutenberg