What's the difference between propeller and tractor?

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.

Tractor


Definition:

  • (n.) That which draws, or is used for drawing.
  • (n.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism.

Example Sentences:

  • (1) Even the landscape is secretive: vast tracts of crown land and hidden valleys with nothing but a dead end road and lonely farmhouse, with a tractor and trailer pulled across the farmyard for protection.
  • (2) Potential dermal exposure from tractor-powered sprayers fitted with conventional hydraulic nozzles was lower than from knapsack sprayers, with exposure from a tractor-powered sprayer fitted with controlled-droplet application equipment intermediate in this regard.
  • (3) Optical tweezers are the 'tractor beams' of today's technology.
  • (4) Sales of tractors and other farm machinery are down by 70%, said Dave Dorsett of Reynolds farm equipment in Martinville.
  • (5) Potential dermal exposure was higher during mixing and loading all tractor-powered sprayers than during spraying.
  • (6) It is recommended that the government require all tractors sold to be equipped with ROPS as is currently the case in England and Sweden.
  • (7) On the second anniversary of their optimistic opening coalition press conference in the rose garden at Downing Street, Cameron and Clegg chose the stark symbolism of a tractor factory floor in Basildon to rededicate the coalition to its central painstaking work of rebalancing the economy and tackling the deficit.
  • (8) The night before the hearing, Patten sat down in front of the box to watch Mud Sweat and Tractors: the Story of Agriculture on BBC4.
  • (9) This month the concessions are being worked at a breakneck pace, with giant tractors and heavy machinery clearing trees, draining swamps and ploughing the land in time to catch the next growing season.
  • (10) 2) Many items on the checklist received a poor evaluations, indicating that there are many ergonomic problems with freight-container tractors.
  • (11) The latter are grown in fields on which oil-based fertilisers have been sprayed and which are ploughed by tractors that burn diesel.
  • (12) Eight people died in a traffic accident involving a tractor-trailer and ten autos.
  • (13) Enjoy riding through the natural beauty of pine forests and open heathland, before taking the Sand Worm (a tractor-trailer ride) across vast sand dunes to the colliding waves of the North and Baltic seas.
  • (14) Save a few tractors for dragging boats up the beach, there are no motor vehicles on Culatra.
  • (15) Tractors were involved in eight of these deaths, falls in four, power take-offs in three, and farm machinery in one.
  • (16) Tractors accounted for one half of these machinery-related deaths, followed by farm wagons, combines, and forklifts.
  • (17) These findings were considered to originate from the fact that the freight-container tractors had many ergonomic problems and the daily driving hours of many drivers were estimated to exceed the allowable vibration exposure time of the ISO.
  • (18) It is the equivalent of allowing a fleet of tractors to drag 30 tonnes of gear over a 150-metre wide swath of land for most days of the year.
  • (19) 'They don't use tractors, they use cow muck as fertiliser; and they have low-tech irrigation systems in Kenya.
  • (20) The hands were the most highly exposed part of the body during mixing and loading operations for all sprayers, and during spraying with tractor-powered sprayers.