high frequency oscillation
Also found in: Dictionary, Thesaurus, Encyclopedia.
a backward and forward motion, like that of a pendulum; also vibration, fluctuation, or variation.
high frequency oscillation a type of high frequency ventilation characterized by the use of active expiration.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
high fre·quen·cy os·cil·la·tion(HFO) (hī frē'kwĕn-sē os'i-lā'shŭn)
A type of mechanical ventilation.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012