pitch

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pitch

 [pich]
1. a dark, more or less viscous residue from distillation of tar and other substances.
2. any of various bituminous substances such as natural asphalt.
3. a resin from the sap of some coniferous trees.
4. the quality of sound dependent on the frequency of vibration of the waves producing it.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pitch

(pich),
A resinous substance obtained from tar after the volatile substances have been expelled by boiling.
Synonym(s): pix
[L. pix]
Farlex Partner Medical Dictionary © Farlex 2012

pitch

(pich)
Auditory perception of tone on a scale ranging from low to high, based on the frequency of vibration of the object emitting the tone. For the human voice, pitch relates to frequency of vibration of the vocal folds.
See: voice, frequency
[L. pix]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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References in periodicals archive ?
where: Ph = propeller pitch; d = diameter of the propeller; and [beta] = angle of attack, according to Klebanov et al.
Likewise, propeller pitch angles can be adjusted through zero, to negative values, forcing air forward.
"It's no secret that I prefer rough conditions where it is absolutely crucial to get the right propeller choice, boat set up and propeller pitch," said Curtis before proving his worth by posting a time of 3m:23.26s.