radius / ˈreɪ di əs /


radius 的定义

n. 名词 noun

plural ra·di·i [rey-dee-ahy], /ˈreɪ diˌaɪ/, ra·di·us·es.

  1. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter.
  2. the length of such a line.
  3. any radial or radiating part.
  4. a circular area having an extent determined by the length of the radius from a given or specified central point: every house within a radius of 50 miles.
  5. a field or range of operation or influence.
  6. extent of possible operation, travel, etc., as under a single supply of fuel: the flying radius of an airplane.
  7. Anatomy. the bone of the forearm on the thumb side.Compare ulna.
  8. Zoology. a corresponding bone in the forelimb of other vertebrates.
  9. Machinery Now Rare. the throw of an eccentric wheel or cam.
  10. a rounded corner or edge on a machined or cast piece of metal.
  11. Entomology. one of the principal longitudinal veins in the anterior portion of the wing of an insect.

radius 近义词

n. 名词 noun

range, sweep


  1. At this point, solvers like Thanh Nguyen used trigonometry to calculate the inner radius of the annulus, which turned out to be R√3.
  2. Not only did Grinin’s team find a value for the charge radius of the proton consistent with the value obtained in muonic hydrogen, they inferred a much more precise value for the Rydberg constant.
  3. Know your radiusEvery smart device implements its geofencing radius a little differently.
  4. Through our network of centrally located fulfillment centers we are able to service customers in a small delivery radius.
  5. There are a couple of ways to measure a proton's charge radius.
  6. By “the Internet,” they meant the people within a seven-cubicle radius of the person who wrote that blog post.
  7. Soon even the closest spectators, right at the edge of my empty radius, turned and looked at me.
  8. Another requirement was that the Colombian National Police would not be permitted within a 12-mile radius of his prison.
  9. In 2012, FIS announced a new requirement increasing the minimum turn radius of GS skis by eight meters.
  10. These were then spread over a 300-mile radius, covered in ravines, gorges and pine forests.
  11. And from my roost I could note the passing of anything bigger than a buffalo yearling, within a radius of at least six miles.
  12. Some of them, stronger than others, sent roots for a radius of a hundred miles, others for a few leagues and no more.
  13. General Steuben observing the large radius of camp concluded that Cornwallis' entire force was across the river.
  14. There are a good many neighbours within a radius of five miles; the trains to town are not all that could be wished.
  15. A very dense fog enveloped everything, confining the view of surrounding objects to a radius of about fifty yards.