Disintegration to Divided light.

Disintegration. (Chern. MQ$onry) Acrumbling away; gradual decay or wasting as of rocks.
Disk. (Shopwk.) Any thin, circular piece in a shop, not specificially named as a part of some machin~ or piece of work.
Disk clutch. (Auto. Meeh.) Single and multiple. The general action is that in which a disk is held against a plate by springs with such force that there is no slipping during the transmission of power through the clutch. Clutches are engaged and disengaged by means of the clutch pedal. .
Disk ruling machine. (Print.) A ma­chine by which lines are ruled with disks instead of steel pens.
Disk sander. (Wood Patrnkg.) A very efficient machine for the pattern shop. It consists primarily of disks of sand-paper glued to a plate which revolves at high speed.
Disk wheel. (Auto.) Made as steel stampings. Some have detachable rims, others have the wheel imd.rim made as a unit. The usual practice is to change the wheel when a tire change is to be made.
Dismantle. To tear down, take apart, disassemble.
Dispersion. Distribution of sound from a speaker through a room or a term sometimes used to describe the magnetic slurry, i.e., the oxide dispersed in the binder system.
Display. The three styles used on mini TVs are cathode-ray tubes (the tra­ditional), liquid crystal display (the most widely accepted for colour pocket portables) and beam index­ing (a nearly flat picture tube de­veloped by Sony).
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Display type (Print.) The kind of type used for featuring or giving strength to some portion of the copy.
Dissipate. To waste, dispel, or drive off, as to exhaust poisonous gases.
Dissipation of energy. (Meeh.) The use or application of energy with­ out a commensurate work return; a waste of energy.
Dissociation. (Chern.) A reversible chemical action induced by heat; e.g., ammonium chloride on being heated breaks down into hydrogen chloride and ammonia, lind these compounds tend to unite to fonn ammonium chloride.
Dissolve. To liquefy, melt, or change from a solid to a fluid state by the addition of some other substance. (Tel.) To bring one sound or pic­ture into and through another sound or picutre. Sometimes called a cross fade or lap dissolve.
Distemper. Term applied to painting with colours mixed with size or oth.er glutinous substance.
Distend. To expand, lengthen, or spread out.
Distillation. (Chern.) The separation of the more volatile parts of a sub­

Distilled water. Water from which impurities have been removed through distillation.
Distortion. (Tel.) Any change in the original frequency, amplitude, or phase of a radio signal, consequently distorting the picture at the receiver. (Wood Patmkg.) That deviation from accuracy or correctness in a casting which may be caused by poor de­sign of a pattern, by the manner in which the mold is rammed up, or by unequal cooling of the different parts o~ the casting.
Distortion factor. Normaly refers to percentage harmonic distortbn in­troduced by a device.
Distortion, TIM (Transient Intermodulation). Intermodula­tion distortion that occurs only momentarily during brief "tran­sients" or signal peaks.
Distribute. (Print.) To break up a form and return type to proper cases.
Distributed capacitance. The self­capacitance of a coil, consisting primarily of the capacitance between adjacement turns and layers.Because of its distributed capaci­tance, the inductor becomes a resonant tank circuit at the frequency at which the capacitive reactance is
equal to the inductive reactance.
BARREl DISTORi10N
Distribution Amp. Divides a single video or audio signal, while boost­ing its strength, to send it to mul­tiple pieces of equipment.
Distributed load. A load spread evenly over the whole extent. of a surface. A girder will carry a load twice the total weight which it would carry if concentrated.
Distribution. (Print.) Placing type, leads, rules, and other materials in their proper places.
Distribution box. (Elec.) A large metal box used in conduit instal­
lation as a center of distribution.
Distribution panel. (Elec.) An electrical switchboard used as a connecting and distributing link between main supply wires and lights or motors to be supplied.
Distributor. (Auto.) The device, op­erating in fixed time with' the en­gine, which distributes the high­tension current to the spark plugs.
Distributor gear. (Auto.) A gear at the lower end 'of a distributor shaft, in mesh with a gear cut or mounted on ttle camshaft, which drives the distributor shaft.
Dive. (Aero.) A steep descent, with or without power, in which the air speed is greater than the maximum speed in horizontal flight.
Divergence. (Aero.) A motion in which, after a disturbance from equilibrium the body departs con­tinuously, without oscillations, from its original state of motion.
Divide. To cut or part into two or more pieces.
Divided light. (Arch.) A window hav­