What's the difference between mechanical and propeller?

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.

Propeller


Definition:

  • (n.) One who, or that which, propels.
  • (n.) A contrivance for propelling a steam vessel, usually consisting of a screw placed in the stern under water, and made to revolve by an engine; a propeller wheel.
  • (n.) A steamboat thus propelled; a screw steamer.

Example Sentences:

  • (1) The Stratolauncher won’t be fully operational for several years, and it may take decades before anyone designs a system that can propel man-made objects through space fast enough to reach a star over a human being’s lifespan, if it happens at all.
  • (2) Last September, propelled by the success of the Irish referendum and the US supreme court decision, the idea that Australian parliamentarians should, as a matter of conscience, reconsider marriage equality was gathering powerful force.
  • (3) Carpeting of the type commonly used in hospitals imposed a burden upon normal and patient wheelchair users propelling a wheelchair as reflected in increased energy cost per unit of distance traveled.
  • (4) They said US forces had found a "daisy chain"– a long bomb rigged up from mortars, rocket-propelled grenades and a motorbike.
  • (5) Some of the main protesters who have propelled the organization movement forward, particularly Deray McKesson , Netta Elzie and Stephen Houldsworth , have expressed no interest in backing down tonight.
  • (6) District head Baba Abba Hassan said most victims are children, women and elderly people who could not run fast enough when insurgents drove into Baga, firing rocket-propelled grenades and assault rifles on town residents.
  • (7) The video filmed by a witness , which propelled the case into the global spotlight, showed Scott was running away with his back turned when Slager, then an officer with the North Charleston police department, opened fire.
  • (8) Right now most are in for small repairs, propellers that sort of thing.
  • (9) The Texas senator Ted Cruz says the rise of Donald Trump makes him “very optimistic” the next occupant of the White House will be a conservative – perhaps himself – propelled there by the “volcanic rage” of voters.
  • (10) Beating and coordination of these short cilia were compared with those of cilia propelling water.
  • (11) His pioneering efforts helped propel Barbados to a leader in solar water heater use in the western hemisphere.
  • (12) Second, if two self-propelled objects are related in a special way--a relation called the BDR sequence--the infant perceives not only intentional movement but also one object as having the goal of affecting the other object.
  • (13) Wednesday’s attack during dawn prayers is the first attack on Maiduguri since 28 December, when Boko Haram killed at least 50 people in an operation involving rocket-propelled grenades and multiple suicide bombers.
  • (14) He careered at Pedro Obiang, propelled by a frightening intent, and the midfielder was forced to flatten the Frenchman but Mike Jones adjudged the offence to have taken place outside the area.
  • (15) Allergic contact eczema from the use of deodorant sprays is sometimes caused by sensitization to the propellants.
  • (16) Interestingly, the thymine.adenine pair favours negative buckling for propellers mostly observed in DNA crystals while positive buckling is preferred by the cytosine.guanine pair.
  • (17) Republican guards used anti-aircraft guns, automatic weapons and rocket-propelled grenades against the opposition camp and intensified the shelling of the streets surrounding the square.
  • (18) Bill Shorten pushes integrity inquiry but says political corruption isn't widespread Read more If politics is about people, and about connections, Shorten’s challenge for 2017 is not only validating the concerns of voters angry enough to propel Donald Trump to the White House, to Brexit and to vote for Pauline Hanson – but to persuade them to make a durable connection with him.
  • (19) He begins describing the crumbling wall of mud that enveloped him, the image of his young daughter propelling him to fight to the surface and take his first breath of air.
  • (20) Lloyd scored three times in just 16 minutes to propel the Americans to a 5-2 win and their first World Cup in 16 years, their third overall.