What's the difference between asteroid and comet?

Asteroid


Definition:

  • (n.) A starlike body; esp. one of the numerous small planets whose orbits lie between those of Mars and Jupiter; -- called also planetoids and minor planets.

Example Sentences:

  • (1) Lipase from Geotrichum asteroides appears more resistant to high temperatures and pH changes than the enzyme from Penicillium sp.
  • (2) This strain of the organism fits a pattern of susceptibility that is rare among N asteroides isolates in general and has been called the type 5 pattern, described as a resistance to broad spectrum cephalosporins, ciprofloxacin, and all aminoglycosides except amikacin.
  • (3) Within 18-24 h asteroid bodies consisting of an amorphous centre with fine radiating needle crystals were seen.
  • (4) The study deals with the phagocytosis of Nocardia asteroides (strain Weipheld) and the subsequent intracellular proliferation in peritoneal macrophage cells.
  • (5) Chalky white colonies, 0.5 to 1.0 mm in diameter, that were subsequently identified as N. asteroides grew well on the BCYE media.
  • (6) This must be regarded as an antigen-antibody precipitate corresponding to the "asteroid body" of previous authors.
  • (7) All six N. brasiliensis and six N. otitidis-caviarum were susceptible to gentamicin and minocycline, while all 15 N. asteroides were not.
  • (8) Microtubules and centrioles were not found in asteroid bodies, although a centriolar field was present in 1 giant cell close to the plasma membrane, completely unrelated to the asteroid body.
  • (9) Complications are unusual, but of the ones that do occur, infection, particularly with Nocardia asteroides, and fibrosis are the most common.
  • (10) The somewhat fortuitous isolation of Nocardia asteroides and its significance are discussed.
  • (11) The pathogenicity of Nocardia asteroides and other strains of different Nocardia species against chicken embryos was investigated.
  • (12) An acute suppurative abscess characterizes the lesions of N. asteroides.
  • (13) The inner solar system is filled with dust between the planets, called the zodiacal cloud, which starts out at the asteroid belt and slowly drifts towards the sun.
  • (14) Ominously, researchers have already discovered that there must be ten times as many potentially dangerous asteroids out there with sizes of the order of tens of metres as previously thought.
  • (15) With N. asteroides, the direct plating method gave equivocal results.
  • (16) The organism identified as Nocardia asteroides resisted to sulfonamide and cotrimoxazole but sensitive to chloramphenicaol and streptomycin in vitro.
  • (17) These findings and clinical observations suggest that inhibition of N. asteroides by neutrophils may be important in vivo.
  • (18) Evidence for the possible developmental pathway of the Schaumann body is provided by morphological changes within myelinoid figures intimately related to the asteroid body.
  • (19) Two and one half years later N. asteroides pneumonia recurred and resulted in death from respiratory failure.
  • (20) The official citation for the asteroid reads: "Iain M. Banks (1954-2013) was a Scottish writer best known for the Culture series of science fiction novels; he also wrote fiction as Iain Banks.

Comet


Definition:

  • (n.) A member of the solar system which usually moves in an elongated orbit, approaching very near to the sun in its perihelion, and receding to a very great distance from it at its aphelion. A comet commonly consists of three parts: the nucleus, the envelope, or coma, and the tail; but one or more of these parts is frequently wanting. See Illustration in Appendix.

Example Sentences:

  • (1) Comet Hale-Bopp graced the night skies in 1997 and was easily visible to the naked eye for months.
  • (2) Walden said the comparison with Comet was “ridiculous”.
  • (3) Its investments have included the airline Monarch, which has returned to profit after nearly collapsing a year ago, Morrisons convenience stores , and the now defunct Comet electrical goods chain.
  • (4) The lawyers have passed on the details of a tribunal judgment, published this month, which states that Chris Farrington, one of three Deloitte administrators, signed a letter to the secretary of state, Vince Cable, in November 2012 stating that there were "no proposed redundancies at present" at Comet .
  • (5) Estimates of what we will be able to see will improve over the next few days as astronomers track the comet's progress.
  • (6) Comet, the electricals retailer that has collapsed into administration, is the latest high street casualty, emblematic of thousands of shuttered shops up and down the land.
  • (7) 1933 Comet Battery store is founded by George Hollingbery in Hull, Yorkshire, employing two people who charge batteries for customers' wireless sets.
  • (8) We have used video image analysis to define appropriate "features" of the comet as a measure of DNA damage, and have quantified damage and repair by ionizing radiation.
  • (9) The authors' contribution to the problem is the observation of special thrombocyte aggregates surrounding neutrophils resembling comet tails, as well as the fact that the authors observed the formation of aggregates surrounding also lymphocytes and eosinophil cells.
  • (10) The pathognomonic sign is the "comet tail" that results from the crowding of vessels and bronchi as they enter the atelectatic region.
  • (11) Diallo was able to get the plate number off the women’s car but when he gave it to police he said he was told: “It’s a civil matter, there’s nothing we can do.” DC police spokeswoman Margarita Mikhaylova said they had “not received reports of specific threats” from businesses neighboring Comet Ping Pong.
  • (12) Following the revelations, it has emerged that Tims, who was news editor of the Surrey Comet between 1980 and 1988, was interviewed by an officer working for Operation Fernbridge, the criminal investigation examining claims of sexual abuse and grooming of children by prominent men, including senior MPs, top police officers and people with links to the royal household.
  • (13) Certain phenomena such as "centrifugal effect" and "comet effect" are examples of new problems generated by the advent of TBM.
  • (14) 2011 Kesa shareholders vote for the sale of loss-making Comet to private investment firm OpCapita for just £2 .
  • (15) This followed a string of closures in 2012 including Comet, JJB Sports, Game, Peacocks and Blacks Leisure.
  • (16) Comet is to close a further 125 stores – with the loss of 2,500 jobs – over the next few weeks, and it may shut down its entire business before the end of the year unless a buyer can be found, the administrator, Deloitte , has warned.
  • (17) Previous probes have included Lunar Prospector, which studied the moon's geology; Stardust, which returned a sample of material scooped from a comet's tail; and Mars Pathfinder, which deployed a tiny motorised robot vehicle on the Red Planet in 1997.
  • (18) We have studied incision-break formation in unstimulated and stimulated populations of human T-lymphocytes using the comet (single-cell microgel electrophoresis) assay.
  • (19) I just wanted to do some good and went about it the wrong way,” Edgar Welch, 28, told a reporter from the New York Times , adding: “I regret how I handled the situation.” Welch was arrested on Sunday at the Comet Ping Pong pizzeria, which became the subject of lurid conspiracy theories after it was mentioned in the personal emails of John Podesta , Hillary Clinton’s campaign chief, published by WikiLeaks.
  • (20) DNA containing breaks extends in the direction of the anode forming an image resembling the tail of a comet.