P5
Initialism of Pentium 5 a slang term used to refer to the successor to the Pentium 4 before the name was revealed by Intel.
Entries starting with P
375 entries.
Pachuca tank
nounMetallurgy
A high narrow tank with a central cylinder for the introduction of compressed air, used in the agitation and settling of pulp (pulverized ore and water) during treatment by the cyanide process.
pad
An exposed area of copper on a printed circuit board meant for connecting wires or electronic components.
paddle shifter
nounAutomotive
Either of a pair of paddles, fitted to the steering wheel of a high-performance motor car, allowing the gears to be changed up or down in a single movement, and without using the clutch. It is a form of sequential shifter.
paddock
A place in a superficial deposit where ore or washdirt (“earth rich enough in metal to pay for washing”) is excavated; also, a place for storing ore, washdirt, etc.
page proof
A trial page or proof that has been made up into pages.
PAM
Abbreviation of power amplitude modulation.
Pamela hat
A straw hat or bonnet popular from the 1790s to the 1870s.
pan
nounCarpentry
A recess, or bed, for the leaf of a hinge.
pan former
Power roll forming equipment that produces a metal panel from a flat sheet.
panel
One of the districts divided by pillars of extra size, into which a mine is laid off in one system of extracting coal.
paper clay
Clay mixed with shredded paper or other fibres, valued for its strength and light weight in the production of large ceramic works.
paper jam
A malfunction in a computer's printer or a photocopier or similar device occurring when sheets of paper become jammed inside.
paraformer
An electrical transformer that uses magnetic inductance
parallel
A character consisting of two parallel vertical lines, used in the text to direct attention to a similarly marked note in the margin or at the foot of a page.
parallelogram of forces
A parallelogram, two adjacent sides of which are vectors having the same initial point and representing two forces acting simultaneously upon this point, such that the resultant of the forces is given by the diagonal of the parallelogram that passes through this point.
parasitic
A component of a circuit that does not show up in a circuit's schematic but does show up in the circuit's behavior.
parasitic element
A circuit element or property that is present within an electrical component, and has a negative effect on the performance of the circuit.
parcel shelf
nounAutomotive
A usually removable shelf lying behind the back seats or over the trunk of a car.
PARD
Acronym of periodic and random deviations, a form of electrical noise.
parge
nounConstruction
A coat of cement mortar on the face of rough masonry, the earth side of foundation and basement walls.
pargeting
nounConstruction
A form of decorative plasterwork used on exterior walls of buildings.
parging
nounConstruction
A coat of cement mortar on the face of rough masonry, the earth side of foundation and basement walls; a parge.
parka
A long jacket with a hood which protects the wearer against rain and wind.
parliamentary train
nounRail equipment
Originally a requirement in the Railway Regulation Act 1844 for railways to run at least one train a day each way, at a cost to passengers of no more than one penny a mile, on every railway line in the country. Presently the term is used for passenger trains that serve a line or station only once a day or week to avoid the cost of applying for closure.
parsec
Syllabic abbreviation of parallax second.
part number
A unique, typically alphanumeric code assigned to a specific component, material, or assembly in order to simplify identification, procurement, and inventory management.
parting sand
nounMetalworking
Dry, non-adhesive sand sprinkled upon the partings of a mould to facilitate the separation by not allowing the mould to stick together.
party line
A single telephone line which is shared by two or more households. Formerly common from the inception of telephony (1880s) through the mid-twentieth century.
pass transistor
A transistor used as a switch to pass logic levels between nodes of a circuit, instead of as a switch connected directly to a supply voltage.
passenger car
nounRail equipment
A railroad car designed to carry passengers.
passenger compartment
nounAutomotive
The part of a road vehicle partitioned from the engine compartment, trunk or boot, etc., designed to hold the passengers and usually the driver; but in limousines and some taxis, buses and goods vehicles, the driver is separated in a cab or driver's compartment.
passenger seat
A seat in a vehicle for a passenger, especially the front seat next to the driver in a motor vehicle.
passive
Any component that consumes but does not produce energy, or is incapable of power gain.
passive restraint
nounAutomotive
A device such as an airbag that is automatically deployed when needed to protect the occupant.
PAT
Initialism of portable appliance testing.
patch
An overlay used to obtain a stronger impression.
patcher
The driver's assistant or lackey in a team of miners.
patt
nounManufacturing
Abbreviation of pattern.
pattern box
A box at each side of a loom containing the various shuttles that may be used.
pavement princess
A pickup truck, SUV, or ute that is modified for off-road capabilities, such as large tires and suspension lifts, but rarely or never used off-road, often seen as showy or impractical.
paver
nounConstruction
A road paving machine, a machine to lay asphalt on roads.
pay dirt
Earth which contains profitable quantities of ore.
paystreak
The zone, parallel to the walls of a vein, in which the ore is concentrated, or any narrow streak of paying ore in less valuable material.
PCA
Initialism of printed circuit assembly.
PCB
Initialism of physically changeable bit.
PCD
nounAutomotive
Initialism of pitch circle diameter (diameter of an imaginary circle that passes through the center of all bolt holes).
PCE
Initialism of power conversion efficiency.
PCV
nounAutomotive
Initialism of positive crankcase ventilation.
PDA
nounManufacturing
Initialism of production data acquisition.
PDC
Initialism of Personal Digital Cellular, a 2G mobile standard used in Japan.
PDI
nounAutomotive
Initialism of petrol direct injection (“fuel injection”).
peak
visor (horizontal part of a cap sticking out in front and shading the wearer's eyes)
peak shaving
The management by a utility of its demand for electricity over time, to reduce spikes in usage.
pecker
Someone who or something that pecks, striking or piercing in the manner of a bird's beak or bill
pedestal
nounMachining
A pillow block; a low housing.
pedestal coil
in a radiator, a group of connected straight pipes arranged side by side and one above another
pedipulator
nounRobotics
A component mechanism which gives a robot the capability of walking; a robot having such a capability.
peekaboo blouse
A blouse that is made partially or completely of fabric that is sheer or transparent and usually reveals portions of the breasts.
peekaboo dress
A dress that is made partially or completely of fabric that is sheer or transparent and that reveals small portions of skin.