press
pressure
pressing | the act of pressing, the exertion of pressure, he gave the button a press, he used pressure to stop the bleeding, at the pressing of a button |
lubricating system
force-feed lubricating system
force feed
pressure-feed lubricating system
pressure feed | mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings |
| pressure cabin | cabin consisting of the pressurized section of an aircraft or spacecraft |
| pressure cooker | autoclave for cooking at temperatures above the boiling point of water |
| pressure dome | a dome-shaped building that is pressurized |
pressure gauge
pressure gage | gauge for measuring and indicating fluid pressure |
| pressure suit | protective garment consisting of an inflatable suit for space or high altitude flying |
acoustic power
sound pressure level | the physical intensity of sound |
| acoustic radiation pressure | (acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave |
| pressure | a force that compels, the public brought pressure to bear on the government |
| pressure point | an area on the skin that is highly sensitive to pressure, you must know the pressure points in order to administer shiatsu |
| pressure point | where problems or difficulties are likely to occur, a key pressure point in the controversy was the building permit |
pressure
pressure sensation | the somatic sensation that results from applying force to an area of skin, the sensitivity of his skin to pressure and temperature was normal |
derived function
derivative
differential coefficient
differential
first derivative | the result of mathematical differentiation, the instantaneous change of one quantity relative to another, df(x)
dx |
| regression coefficient | when the regression line is linear (y axb) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x), it is the slope of the regression line |
correlation coefficient
coefficient of correlation
correlation | a statistic representing how closely two variables co-vary, it can vary from - (perfect negative correlation) through
(no correlation) to(perfect positive correlation), what is the correlation between those two variables? |
product-moment correlation coefficient
Pearson product-moment correlation coefficient | the most commonly used method of computing a correlation coefficient between variables that are linearly related |
| multiple correlation coefficient | an estimate of the combined influence of two or more variables on the observed (dependent) variable |
biserial correlation coefficient
biserial correlation | a correlation coefficient in which one variable is many-valued and the other is dichotomous |
rank-order correlation coefficient
rank-order correlation
rank-difference correlation coefficient
rank-difference correlation | the most commonly used method of computing a correlation coefficient between the ranks of scores on two variables |
| coefficient of concordance | a coefficient of agreement (concordance) between different sets of rank orderings of the same set of things |
tau coefficient of correlation
Kendall's tau
Kendall rank correlation | a nonparametric measure of the agreement between two rankings |
phi coefficient
phi correlation
fourfold point correlation | an index of the relation between any two sets of scores that can both be represented on ordered binary dimensions (e.g., male-female) |
tetrachoric correlation coefficient
tetrachoric correlation | a correlation coefficient computed for two normally distributed variables that are both expressed as a dichotomy |
lobby
pressure group
third house | a group of people who try actively to influence legislation |
| pressure point | any of several points on the body where the pulse can be felt and where pressure on an underlying artery will control bleeding from that artery at a more distal point |
atmospheric pressure
air pressure
pressure | the pressure exerted by the atmosphere |
| blood pressure | the pressure of the circulating blood against the walls of the blood vessels, results from the systole of the left ventricle of the heart, sometimes measured for a quick evaluation of a person's health, adult blood pressure is considered normal at
where the first number is the systolic pressure and the second is the diastolic pressure |
| systolic pressure | the blood pressure (as measured by a sphygmomanometer) during the contraction of the left ventricle of the heart |
| diastolic pressure | the blood pressure (as measured by a sphygmomanometer) after the contraction of the heart while the chambers of the heart refill with blood |
| arterial pressure | the pressure of the circulating blood on the arteries, arterial pressure is the product of cardiac output and vascular resistance |
| venous pressure | the pressure exerted on the walls of the veins by the circulating blood |
| gas pressure | the pressure exerted by a gas |
pressure
pressure level
force per unit area | the force applied to a unit area of surface, measured in pascals (SI unit) or in dynes (cgs unit), the compressed gas exerts an increased pressure |
| barometric pressure | atmospheric pressure as indicated by a barometer |
| compartment pressure | the air pressure maintained in an air-tight compartment (as in an aircraft) |
| sea-level pressure | the atmospheric pressure reduced by a formula to the pressure at sea level |
intraocular pressure
IOP | pressure exerted by the fluids inside the eyeball, regulated by resistance to the outward flow of aqueous humor, glaucoma can result from increased intraocular pressure |
| oil pressure | pressure that keeps oil on the moving parts of an internalombustion engine |
| osmotic pressure | (physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solvent by a semipermeable membrane |
radiation pressure
corpuscularadiation pressure | the minute pressure exerted on a surface normal to the direction of propagation of a wave |
sound pressure
instantaneous sound pressure | the difference between the instantaneous pressure at a point in a sound field and the average pressure at that point |
vapor pressure
vapour pressure | the pressure exerted by a vapor, often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form) |
| coefficient | a constant number that serves as a measure of some property or characteristic |
absorption coefficient
coefficient of absorption
absorptance | a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance, the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber, absorptance equals minus transmittance |
drag coefficient
coefficient of drag | the ratio of the drag on a body moving through air to the product of the velocity and the surface area of the body |
| coefficient of friction | the ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface |
coefficient of mutual induction
mutual inductance | a measure of the induction between two circuits, the ratio of the electromotive force in a circuit to the corresponding change of current in a neighboring circuit, usually measured in henries |
coefficient of self induction
self-inductance | the ratio of the electromotive force produced in a circuit by self-induction to the rate of change of current producing it, expressed in henries |
coefficient of elasticity
modulus of elasticity
elastic modulus | (physics) the ratio of the applied stress to the change in shape of an elastic body |