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.

pitch

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

pitch

(pich)
1. a dark 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 principally on its frequency.

pitch

Etymology: ME, picchen
1 the highness or lowness of a tone or sound depending on the rate of vibration of the sound source.
2 (in helical computed tomography) the ratio of table advancement per 360-degree rotation of the x-ray tube to the detector collimator.

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]

pitch

1. a dark, more or less viscous residue from distillation of tar and other substances.
2. natural asphalt of various kinds.
3. the quality of sound dependent on the frequency of vibration of the waves producing it

coal tar pitch

Patient discussion about pitch

Q. What causes high pitch ringing in one ear?

A. I never knew that about Iron. Thank you F3_4u

More discussions about pitch
References in periodicals archive ?
This pitch-black parable of corruption at the highest and lowest levels of government virtually takes no prisoners, and its angry humor is mighty crude to boot.
THE PITCH-BLACK COMEDY ``Death to Smoochy'' makes for some pretty funny satire - for about 40 minutes.
Michael Pariseau, owner of Hidden Springs Equestrian Center and Stallion School in Mareno Valley, stood beside a Friesian stallion, its pitch-black hair lustrous under the sunshine, and demonstrated what the horse undergoes when not performing.
But, hey, we're sure it gets lonely working all those pitch-black nights.
Its plot goes straight to the darkest recesses of our collective imagination, borrowing from such diverse sources as the brothers Grimm, MTV's ``Real World'' (from hell) and the bogeyman demons that chase us in the pitch-black night.
They want the pitch-black, slightly slanted ovals wrapped around Keanu Reeves' eyes, and they're dying to try on the stemless spectacles Laurence Fishburne hid behind.
It's like walking into a pitch-black room and you feel off balance.
Rescue workers compared the little towns to a bomb blast, as sirens sounded for miles and people wandered listlessly on pitch-black roads in driving rain because there was nowhere to go to rest or get dry.
and found a small amount of fire in the office area, but was unable to advance to main part of the fire because of the pitch-black, smoky conditions, the report said.
Walker, Canada's reigning master of pitch-black comedies about ex-cons, high-strung housewives and other colorful losers.
By the way, did any of you have the opportunity to actually go outside in the pitch-black during El Nino?
But the creatures' movements are stilted, and their habit of leaping out of pitch-black catacombs - always foreshadowed by panting and snorting - is predictable by the second lunge, so it's unlikely there will be much shrieking or repeated clutching of boyfriends' thighs.