HF
5
6.4
- noun
- Specialized
:
HF
- A composite of cardiovascular death, aborted cardiac arrest, or HF hospitalization.
Examples
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Patients with chronic HF often have impaired renal function.
Academic text (2018) -
It has three HF antennas.
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Get me an HF frequency.
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- Try SAC Headquarters on the HF.
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Left ventricular end-diastolic pressure almost doubled in the HF group, confirming the presence of congestive HF.
Academic text (2018) -
Lung weights were increased in HF compared to controls due to pulmonary congestion, confirming decompensated HF.
Academic text (2018) -
However, the more detailed biochemical and molecular basis of HF-induced kidney injury is unexplored in this and other animal models.
Academic text (2018) -
Mean blood pressure during renal studies was lower in HF animals compared to controls (Fig. 2A).
Academic text (2018) -
AF is common in patients with HF, and its incidence increases with HF severity (1).
Academic text (2015) -
The technicians adjusted the settings to optimize the HF signal for clearer communication.
Synonyms
1
4.6
A range of radio waves used to communicate over long distances
How High-Frequency
Surface Forms
Morphology
HF = high + frequency (semi-transparent) = H + F
The initialism 'HF' directly abbreviates the phrase 'high frequency', so the meaning follows transparently from the component words when the expansion is known. [Postprocessing: changed transparency from 'transparent' to 'semi-transparent' for abbreviation]
Etymology
HF stands for high frequency, where high means 'above' and frequency — as in frequent — means 'how often'. So HF is the name for radio waves that repeat many times per second in the range of about 3 to 30 megahertz and are used for long-distance radio communication.