What's the difference between mechanical and purchase?

Mechanical


Definition:

  • (a.) Pertaining to, governed by, or in accordance with, mechanics, or the laws of motion; pertaining to the quantitative relations of force and matter, as distinguished from mental, vital, chemical, etc.; as, mechanical principles; a mechanical theory; mechanical deposits.
  • (a.) Of or pertaining to a machine or to machinery or tools; made or formed by a machine or with tools; as, mechanical precision; mechanical products.
  • (a.) Done as if by a machine; uninfluenced by will or emotion; proceeding automatically, or by habit, without special intention or reflection; as, mechanical singing; mechanical verses; mechanical service.
  • (a.) Made and operated by interaction of forces without a directing intelligence; as, a mechanical universe.
  • (a.) Obtained by trial, by measurements, etc.; approximate; empirical. See the 2d Note under Geometric.
  • (n.) A mechanic.

Example Sentences:

  • (1) Such a signal must be due to a small ferromagnetic crystal formed when the nerve is subjected to pressure, such as that due to mechanical injury.
  • (2) These data suggest that the hybrid is formed by the same mechanism in the absence and presence of the urea step.
  • (3) Some common eye movement deficits, and concepts such as 'the neural integrator' and the 'velocity storage mechanism', for which anatomical substrates are still sought, are introduced.
  • (4) We have investigated the effect of methimazole (MMI) on cell-mediated immunity and ascertained the mechanisms of immunosuppression produced by the drug.
  • (5) One hour after direct mechanical cardiomassage (DMCM) a moderately pronounced edema of the intercellular spaces in the basal compartment of the seminiferous epithelium, normal content of lactate and succinate dehydrogenases, and a certain decrease in the activity of glucose-6-phosphate dehydrogenases and NAD- and NADP-diaphorases were noted.
  • (6) It is concluded that amlodipine reduces myocardial ischemic injury by mechanism(s) that may involve a reduction in myocardial oxygen demand as well as by positively influencing transmembrane Ca2+ fluxes during ischemia and reperfusion.
  • (7) Models able to describe the events of cellular growth and division and the dynamics of cell populations are useful for the understanding of functional control mechanisms and for the theoretical support for automated analysis of flow cytometric data and of cell volume distributions.
  • (8) The following is a brief review of the history, mechanism of action, and potential adverse effects of neuromuscular blockers.
  • (9) However, the mechanism of the inhibitory action is still somewhat uncertain.
  • (10) It also provides mechanical support for the collateral ligaments during valgus or varus stress of the knee.
  • (11) We studied the hemodynamic changes caused by bronchoscopy under LA in mechanically ventilated patients and the effect of LA on the endoscopic decline in arterial pO2.
  • (12) Together these observations suggest that cytotactin is an endogenous cell surface modulatory protein and provide a possible mechanism whereby cytotactin may contribute to pattern formation during development, regeneration, tumorigenesis, and wound healing.
  • (13) Dilutional studies comparing the mechanism of inhibition of monoamine oxidase produced by Gerovital H3 and by ipronizid demonstrated that Gerovital H3 was a reversible inhibitor of monoamine oxidase.
  • (14) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
  • (15) Based on our results, we propose the following hypotheses for the neurochemical mechanisms of motion sickness: (1) the histaminergic neuron system is involved in the signs and symptoms of motion sickness, including vomiting; (2) the acetylcholinergic neuron system is involved in the processes of habituation to motion sickness, including neural store mechanisms; and (3) the catecholaminergic neuron system in the brain stem is not related to the development of motion sickness.
  • (16) Thus, mechanical restitution of the ventricle is a dynamic process that can be assessed using an elastance-based approach in the in situ heart.
  • (17) The mechanism by which pertussis toxin (PT) breaks the unresponsiveness of delayed-type hypersensitivity (DTH) to sheep red blood cells (SRBC) was examined in B10 mice.
  • (18) This suggests that a physiological mechanism exists which can increase the barrier pressure to gastrooesophageal reflux during periods of active secretion of the stomach, as occurs in digestion.
  • (19) The macrophage-derived product, interleukin 1 (IL 1) is thought to play an important regulatory role in the proliferation of T lymphocytes; however, its mechanism of action is unknown.
  • (20) Adding a layer of private pensions, it was thought, does not involve Government mechanisms and keeps the money in the private sector.

Purchase


Definition:

  • (v. t.) To pursue and obtain; to acquire by seeking; to gain, obtain, or acquire.
  • (v. t.) To obtain by paying money or its equivalent; to buy for a price; as, to purchase land, or a house.
  • (v. t.) To obtain by any outlay, as of labor, danger, or sacrifice, etc.; as, to purchase favor with flattery.
  • (v. t.) To expiate by a fine or forfeit.
  • (v. t.) To acquire by any means except descent or inheritance.
  • (v. t.) To buy for a price.
  • (v. t.) To apply to (anything) a device for obtaining a mechanical advantage; to get a purchase upon, or apply a purchase to; as, to purchase a cannon.
  • (v. i.) To put forth effort to obtain anything; to strive; to exert one's self.
  • (v. i.) To acquire wealth or property.
  • (v. t.) The act of seeking, getting, or obtaining anything.
  • (v. t.) The act of seeking and acquiring property.
  • (v. t.) The acquisition of title to, or properly in, anything for a price; buying for money or its equivalent.
  • (v. t.) That which is obtained, got, or acquired, in any manner, honestly or dishonestly; property; possession; acquisition.
  • (v. t.) That which is obtained for a price in money or its equivalent.
  • (v. t.) Any mechanical hold, or advantage, applied to the raising or removing of heavy bodies, as by a lever, a tackle, capstan, and the like; also, the apparatus, tackle, or device by which the advantage is gained.
  • (v. t.) Acquisition of lands or tenements by other means than descent or inheritance, namely, by one's own act or agreement.

Example Sentences:

  • (1) Britain had been negotiating with the Saudis over the purchase from British Aerospace of dozens of Hawk and Tornado fighter aircraft.
  • (2) The Sports Network broadcasts live NHL, Nascar, golf and horse racing – having also recently purchased the rights for Formula One – and will show 154 of the 196 games that NBC will cover.
  • (3) This study sought to determine if and why barriers to the over-the-counter purchase of syringes in the St. Louis metropolitan area might exist, given that no ordinance prohibits such a sale there.
  • (4) The government’s increase in the discount offered to tenants has prompted a massive increase in purchases of local authority accommodation.
  • (5) Following baseline, training consisted of teaching students to use a number line to make purchases.
  • (6) In the first experiment, mongrel and ddS mice produced under an unsatisfactory control of proximate environment were purchased, and acute toxicity tests of thiamine hydrochloride (B1HCl) and isonicotinic acid hydrazide (INAH) were practiced at two different conditioned rooms.
  • (7) Our fundamental market is 75% done,” he said last weekend, “and when we sign one midfield player that crucial work will be done.” The manager did not rule out further purchases, though.
  • (8) After a brief review of the range of monitoring accessories, the author considers the problem of their hospital standardization (various needs of the different hospital units, diversity of the monitors, existence of central purchasing departments, pressure from the treasurer's office).
  • (9) As well as stocking second-hand items for purchase, charity shops such as Oxfam have launched Christmas gifts to provide specific help for poor communities abroad.
  • (10) Like many young Chinese, Hua often made purchases on Taobao, the country’s equivalent of eBay.
  • (11) Howard Archer of consultancy IHS Global Insight said: "Given the dominant role of the services sector in the economy, the steady growth in May reported by the purchasing managers is welcome news and supports hopes that it can avoid further contraction in the second quarter."
  • (12) The CML said the value of lending for house purchases was up by 8% year on year in May, at £9.4bn, while the number of loans grew by 5% to 53,800.
  • (13) Tesco uniforms can be bought through the supermarket's Clubcard Boost scheme, where £5 in Clubcard vouchers equals a £10 spend on clothing, while Asda is offering free delivery on uniform purchases of over £25.
  • (14) It's possible to go out and about, and not talk to anybody apart from the person you purchase goods from."
  • (15) The company is also making its VR games collection free to all purchasers of its headset.
  • (16) The FSA last month published a report by Professor Gerard Hastings which concluded that advertising to children does have an effect on their food preferences, purchasing behaviour and consumption, and that these effects occur not just at brand level, but also for different types of food.
  • (17) That would mark a controversial break from its existing policy, whereby the ECB offsets bond purchases by draining liquidity from the system in separate operations.
  • (18) The news website is run by journalist Carmen Aristegui, who in 2014 reported that Peña Nieto’s wife was purchasing a house with financing from a government contractor .
  • (19) For example, if we purchase new examination equipment without any consideration or if we decide what type of equipment to introduce according to the common advice of the purchase committee of the hospital or the medical school, then we cannot design an ideal system of laboratory examinations and are forced to invest a large sum of money in vain.
  • (20) The euro clawed back some losses after the European Central Bank said it would absorb €16.5bn from the money markets to compensate for bond purchases up to 14 May, and Greece said it would receive the first tranche of emergency loans tomorrow.