flowmeter
[flo´me-ter] an apparatus for measuring the rate of flow of liquids or gases.

An oxygen flowmeter. From Lammon et al., 1995.
ultrasound flowmeter any of various types of flowmeters that use
ultrasound techniques to measure blood flow, such as the
Doppler ultrasonic flowmeter. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
flow·me·ter
(flō'mē-tĕr), A device for measuring velocity or volume of flow of liquids or gases.
Farlex Partner Medical Dictionary © Farlex 2012
flow·me·ter
, flow meter (flōmē-tĕr) 2. A device for controlling the flow of medical gases, as in the delivery of air or oxygen to a nebulizer.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
flowmeter
An instrument for measuring the rate of flow of a gas or liquid. Flowmeters are important in anaesthetic practice.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
flow·me·ter
, flow meter (flōmē-tĕr) A device for measuring velocity or volume of flow of liquids or gases.
Medical Dictionary for the Dental Professions © Farlex 2012