Continuous physical force exerted on or against an object by something in contact with it
a confined gas exerts a constant pressure on the wall of its container
Atmospheric pressure; pressure of air.
That does not involve pressure (literal or figurative).
The pressure exerted by a fluid filling the pores of a soil or rock.
A distribution of pressure over an excavation resembling that in a structural arch, caused by increased pressure on the side walls of the excavation, which act as abutments supporting the strata forming the roof.
A bar in a machine used to apply force; specifically a device in a planing machine for holding down the material to be planed (now rare).
A strong, thick-walled container in which chemical processes can be carried out under pressure.
A cap made to withstand pressure or to be sensitive to pressure; specifically one that incorporates a pressure relief valve, as on the radiator or coolant tank of a motor vehicle.
Produced or made by pressure casting.
The drag on a moving body which results from the aerodynamic pressure distribution over its surface.
Supplied with material by means of applied pressure; utilizing a pressure feed.
A supply system in which the flow of material is maintained by applied pressure; the supplying of material, especially fuel, in this way.
To supply (material, especially fuel) by means of applied pressure.
The pressure exerted by a fluid, expressed as the height of a column of the fluid which would produce that pressure by virtue of its weight.
A hold maintained by the exertion of sideways or downward pressure.
Ice on the sea or a lake that has a broken, uneven surface as a result of compressive or other forces.
Attributive Designating a type of oil burner in which the fuel is burned at a nozzle from which it is ejected under pressure as fine droplets.
A sudden increase in pressure over a short distance; (Meteorology) a mobile zone of atmospheric disturbance characterized by a steep pressure gradient and usually marking a discontinuity in the height of an inversion layer.
Rare a pressure ridge in ice.
A mine actuated by a change in pressure; especially an underwater mine actuated by the temporary reduction in hydrostatic pressure caused by a passing ship.
A dispenser or other receptacle containing a substance, frequently an aerosol, under pressure.
A pad designed to transmit or absorb pressure; (in later use) especially one which converts applied pressure into an electrical signal.
A pipe carrying water, air, or other fluid under pressure.
A sore or ulcer of the skin and soft tissue, usually over a bony prominence, occurring in an immobile patient as a result of continuous pressure of the body against a bed or other object; a bedsore, a decubitus ulcer.
A small area on the skin specially sensitive to pressure; a pressure point.
A tank in which a fluid, especially fuel, is held under pressure.
A test of the ability to withstand or sustain pressure; a test to ascertain pressure.
To subject to a pressure test.
A tube containing liquid or gas under pressure.
A wave consisting of a sudden change in pressure propagated through a medium.
The hydrostatic pressure generated in the roots of a plant, which helps the sap to rise in the xylem.
A condition of the atmosphere in which the pressure is above average (e.g. in an anticyclone)
A condition of the atmosphere in which the pressure is below average (e.g. in a depression)
The pressure of oil in an internal-combustion engine
Influence from members of one’s peer group
The inner hull of a submarine, in which approximately normal pressure is maintained when the vessel is submerged
A portable oil or paraffin lamp in which the fuel is forced up into the mantle or burner by air pressure in the reservoir, which can be increased by pumping with a plunger
An inflatable suit that protects the wearer against low pressure, for example when flying at a high altitude
unscrupulous salesmen using high-pressure tactics
(In toothed gearing) the angle between the tangent to a tooth at the pitch point and the radial line at that point (a small angle corresponding to a steep tooth profile); (equivalently, for involute teeth) the angle between the line of action and the tangent to the pitch circle at the pitch point.
A blower in which the air is compressed before being forced out.
A boiler designed to withstand high pressures, for heating liquids above their normal boiling points.
An airtight cabin in an aircraft in which the air is maintained at a pressure safe and comfortable for the occupants.
A paper-insulated cable containing gas or oil under pressure within the outer sheath or pipe, the pressure counteracting the tendency of the insulation to separate from the conductors in operating conditions and enabling higher voltages to be used.
A crack caused by or attributed to pressure, especially in lake or sea ice.
An engine powered by steam under pressure, a steam engine (now historical).
Mineralogy a pattern of cracks formed on the surface of a mineral by applying steady pressure at a point.
A filter through which liquid is forced by applied pressure.