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Glossary of Mechanical Terms
beginning with letter P
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pair Tweet Definition of pair Like Definition of pair on Facebook
noun 
  1. Two similar or identical things taken together.
I couldn't decide which of the two dresses I preferred, so I bought the pair.
  1. (followed by of) Two; a couple of.
  2. Two people in a relationship, partnership or friendship.
My wife and I make a great pair.
  1. Used in the names of some objects and garments that have two similar parts or halves.
a pair of scissors
a pair of jeans
but not a pair of cymbals
  1. (cricket) A score of zero runs (a duck) in both innings of a two-innings match
  2. (baseball) A double play, two outs recorded in one play
They turned a to end the fifth.
  1. (baseball) A doubleheader, two games played on the same day between the same teams
The Pirates took a from the Phillies.
  1. (poker) A poker hand that contains of two cards of identical rank which cannot also count as a better hand.
  2. (slang) - pair (of breasts) - she's got a gorgeous pair.
verb 
  1. (transitive) To put (two people or things) together.
     
pendulum Tweet Definition of pendulum Like Definition of pendulum on Facebook
noun (pl=pendulums, pl2=pendula)
  1. A body suspended from a fixed support so that it swings freely back and forth under the influence of gravity, commonly used to regulate various devices such as clocks.
     
perpetual motion Tweet Definition of perpetual motion Like Definition of perpetual motion on Facebook
noun 
  1. the motion of some hypothetical device that continues forever with no obvious input of energy in violation of the laws of thermodynamics
     
power Tweet Definition of power Like Definition of power on Facebook
noun 
  1. Physical force or strength.
  2. Control and influence over another entity and its actions.
He exerted his upon his subordinates to obtain illicit, personal satisfaction.
The party has won thanks to the influence of its charismatic leader.
  1. (physics) A measure of the rate of doing work or transferring energy.
  2. (physics) A rate to magnify an optical image by a lens or mirror.
  3. (Biblical tradition) in Christian angelology, the fourth level of angels, ranked above archangels and below principality, principalities
  4. (mathematics) A product of equal factors. Notation and usage: xn, read as "x to the power of " or "x to the th power", denotes x × x × ... × x, in which x appears times, where is called the exponent; the definition is extended to non-integer and complex exponents.
  5. Electricity supply.
  6. A nation having a strong military and/or economy.
  7. (settheory) Cardinality.
verb 
  1. (transitive) To provide power for (a mechanical or electronic device).
     
profile Tweet Definition of profile Like Definition of profile on Facebook
noun 
  1. (countable) the outermost shape, view, or edge of an object
    His fingers traced the of the handle.
  2. (countable} the shape, view, or shadow of a person's head from the side
    The brooch showed the of a Victorian woman.
  3. (countable) a summary or collection of information, especially about a person
    Law enforcement assembled a of the suspect.
  4. (uncountable) reputation
  5. (uncountable) the amount by which something protrudes
    Choose a handle with a low so it does not catch on things.
  6. (uncountable) prominence; noticeability
    Acting is, by nature, profession in which one must keep a high .
verb (profil, ing)
  1. to create a summary or collection of information, especially about a person
  2. to act based on such a summary; especially, to act on a stereotype. See profiling.
     
propagate Tweet Definition of propagate Like Definition of propagate on Facebook
verb (propagates, propagating, propagated)
  1. To cause to continue or multiply by generation, or successive production; -- applied to animals and plants; as, to propagate a breed of horses or sheep; to propagate a species of fruit tree.
  2. To cause to spread to extend; to impel or continue forward in space; as, to propagate sound or light.
  3. To spread from person to person; to extend the knowledge of; to originate and spread; to carry from place to place; to disseminate; as, to propagate a story or report; to propagate the Christian religion.
  4. (obsolete) To multiply; to increase.
  5. To generate; to produce.
  6. To have young or issue; to be produced or multiplied by generation, or by new shoots or plants; as, rabbits propagate rapidly.
     
purchase Tweet Definition of purchase Like Definition of purchase on Facebook
noun 
  1. an individual item one has purchased
  2. The act of seeking, getting, or obtaining something (e.g. property, etc.)
  3. The acquisition of title to, or property in, anything for a price; buying for money or its equivalent.
They offer free with the of a drink.
  1. That which is obtained, got, or acquired, in any manner, honestly or dishonestly; property; possession; acquisition.
  2. That which is obtained for a price in money or its equivalent.
He was pleased with his latest .
  1. (uncountable) Any mechanical hold, or advantage, applied to the raising or removing of heavy bodies, as by a lever, a tackle, capstan, and the like
It is hard to get on a nail without a pry bar or hammer.
  1. the apparatus, tackle, or device by which such mechanical advantage is gained
  2. (rock climbing, uncountable): the amount of hold one has from an individual foothold or ledge
  3. Acquisition of lands or tenements by other means than descent or inheritance, namely, by one's own act or agreement.
verb (purchas, es)
  1. buy
  2. To pursue and obtain; to acquire by seeking; to gain, obtain, or acquire.
  3. To obtain by paying money or its equivalent; to buy for a price
to land, to a house.
  1. To obtain by any outlay, as of labor, danger, or sacrifice, etc.
to favor with flattery.
  1. To expiate by a fine or forfeit.
  2. To apply to (anything) a device for obtaining a mechanical advantage; to get a upon, or apply a to
to purchase a cannon.
  1. To put forth effort to obtain anything; to strive; to exert one's self.
  2. To acquire wealth or property.
     

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