noun \ˈpich\

Definition of PITCH

:  a black or dark viscous substance obtained as a residue in the distillation of organic materials and especially tars
:  any of various bituminous substances
:  resin obtained from various conifers and often used medicinally
:  any of various artificial mixtures resembling resinous or bituminous pitches

Origin of PITCH

Middle English pich, from Old English pic, from Latin pic-, pix; akin to Greek pissa pitch, Old Church Slavic pĭcĭlŭ
First Known Use: before 12th century

Other Chemical Engineering Terms

alkali, cation, decant, hygroscopic, isotope, oxidize, slurry, solute, viscous


transitive verb

Definition of PITCH

:  to cover, smear, or treat with or as if with pitch

First Known Use of PITCH

before 12th century



Definition of PITCH

transitive verb
:  to erect and fix firmly in place <pitch a tent>
:  to throw usually with a particular objective or toward a particular point <pitch hay onto a wagon>: as
a :  to throw (a baseball) to a batter
b :  to toss (as coins) so as to fall at or near a mark <pitch pennies>
c :  to put aside or discard by or as if by throwing <pitched the trash into the bin>
a :  to present or advertise especially in a high-pressure way :  plug, promote
b :  to attempt to persuade especially with a sales pitch
c :  to present (a movie or program idea) for consideration (as by a TV producer)
a (1) :  to cause to be at a particular level or of a particular quality <a test pitched at a 5th-grade reading level> (2) :  to set in a particular musical key
b :  to cause to be set at a particular angle :  slope
:  to utter glibly and insincerely
a :  to use as a starting pitcher
b :  to play as pitcher
:  to hit (a golf ball) in a high arc with backspin so that it rolls very little after striking the green
:  throw 14 <pitch a fit>
intransitive verb
a :  to fall precipitately or headlong
b (1) of a ship :  to have the bow alternately plunge precipitately and rise abruptly
(2) of an aircraft, missile, or spacecraft :  to turn about a lateral axis so that the forward end rises or falls in relation to the after end
c :  buck 1
:  encamp
:  to hit upon or happen upon something <pitch upon the perfect gift>
:  to incline downward :  slope
a :  to throw a ball to a batter
b :  to play ball as a pitcher
c :  to pitch a golf ball
:  to make a sales pitch
pitch into
:  attack, assail
:  to set to work on energetically

Origin of PITCH

Middle English pichen to thrust, drive, fix firmly, probably from Old English *piccan, from Vulgar Latin *piccare — more at pike
First Known Use: 13th century



Definition of PITCH

a :  slope; also :  degree of slope :  rake
b :  the distance between any of various things: as
(1) :  distance between one point on a gear tooth and the corresponding point on the next tooth (2) :  distance from any point on the thread of a screw to the corresponding point on an adjacent thread measured parallel to the axis
c :  the theoretical distance a propeller would advance longitudinally in one revolution
d :  the number of teeth or of threads per inch
e :  a unit of width of type based on the number of times a letter can be set in a linear inch
:  the action or a manner of pitching; especially :  an up-and-down movement — compare yaw
archaic :  top, zenith
a :  the relative level, intensity, or extent of some quality or state <tensions rose to a feverish pitch>
b (1) :  the property of a sound and especially a musical tone that is determined by the frequency of the waves producing it :  highness or lowness of sound
(2) :  a standard frequency for tuning instruments
c (1) :  the difference in the relative vibration frequency of the human voice that contributes to the total meaning of speech
(2) :  a definite relative pitch that is a significant phenomenon in speech
a :  a steep place :  declivity
b :  the portion of a route (as in mountain climbing or caving) between belay points
chiefly British
a :  an outdoor site (as for camping or doing business)
b :  playing field 1
:  an all-fours game in which the first card led is a trump
a :  an often high-pressure sales presentation
b :  advertisement
c :  recommendation, plug <made a pitch for tax cuts>
a :  the delivery of a baseball by a pitcher to a batter
b :  a baseball so thrown
c :  pitchout 2
pitched \ˈpicht\ adjective

Illustration of PITCH

First Known Use of PITCH


Other Aeronautics/Aerospace Terms

airway, apron, corridor, dirigible, fishtail, flat-hat, vector


noun    (Concise Encyclopedia)

In music, position of a single sound in the complete range of sound; this quality varies with the number of vibrations per second (hertz, Hz) of the sounding body and is perceived as highness or lowness. A higher pitch has a higher number of vibrations. In Western music, standard pitches have long been used to facilitate tuning. A confusing variety of pitches prevailed until the 19th century, when the continual rise in pitch made some international agreement a matter of practical necessity. In 1939 the A above middle C was standardized as 440 Hz. See also interval; tuning and temperament.


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