Online Google Dictionary

radius 中文解釋 wordnet sense Collocation Usage
Noun
/ˈrādēəs/,
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radii, plural; radiuses, plural;
  1. A straight line from the center to the circumference of a circle or sphere

  2. A radial line from the focus to any point of a curve

  3. The length of the radius of a circle or sphere

  4. A specified distance from a center in all directions
    • - there are plenty of local pubs within a two-mile radius
  5. The thicker and shorter of the two bones in the human forearm

  6. The corresponding bone in a vertebrate's foreleg or a bird's wing

  7. (in an echinoderm or coelenterate) Any of the primary axes of radial symmetry

  8. Any of the main veins in an insect's wing


  1. the length of a line segment between the center and circumference of a circle or sphere
  2. a circular region whose area is indicated by the length of its radius; "they located it within a radius of 2 miles"
  3. the outer and slightly shorter of the two bones of the human forearm
  4. spoke: support consisting of a radial member of a wheel joining the hub to the rim
  5. In classical geometry, a radius of a circle or sphere is any line segment from its center to its perimeter. By extension, the radius of a circle or sphere is the length of any such segment, which is half the diameter. at mathwords.com. Accessed on 2009-08-08.
  6. Remote Authentication Dial In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for computers to connect and use a network service. RADIUS was developed by Livingston Enterprises, Inc. ...
  7. Radius is an up-and-coming band from Los Angeles, California. Songs by Radius have been licensed for use in nationally broadcast Victoria's Secret television commercials, WB's TV show One Tree Hill, the NBC primetime show Las Vegas and several network television shows and movies on NBC, ABC, CBS ...
  8. The following are characters from the PlayStation game Chrono Cross.
  9. Radius (Jared Corbo) is a fictional character, a superhero in the Marvel Comics universe. He is a former member of the superhero team Alpha Flight. He first appeared in Alpha Flight: In The Beginning #-1, and first appeared as Radius in Alpha Flight vol. 2 #1 (both published in 1998).
  10. Radius was a computer hardware firm founded in May 1986 by Burrell Smith, Andy Hertzfeld, Mike Boich, Matt Carter, Alain Rossman and other members of the original Mac team specializing in Macintosh equipment.
  11. of metric space is the infimum of radii of metric balls which contain the space completely.
  12. The distance between the center of the swing arc (the target or forward shoulder) and the hands on the grip.
  13. In astronomy, an old instrument for measuring the angular distance between two celestial objects. [A84]
  14. The word radius was a Latin word for the spoke of a wheel, and no resource I can find seems to take the origin back any farther. Some include comments about an "uncertain origin". ...
  15. Latin = spoke of a wheel, which rotates around the hub; hence, the lateral bone of the forearm, which rotates (though around an almost vertical axis); adjective - radial.
  16. A standard technology used by many major corporations to protect access to wireless networks. RADIUS is a user name and password scheme that enables only approved users to access the network; it does not affect or encr ypt data. ...
  17. Routine Antenatal Diagnostic Imaging with Ultrasound [trial]
  18. Distance measured from the center to any point along the boundary of a circle or sphere. A sphere's volume equals 4/3 p (r)3.
  19. Used for data presented according to user-defined geographic areas, normally using interactive mapping tools.
  20. Radius is used to refer to the measurement of the actual radius of a product with a rounded portion. It is also used in a general sense to refer to any product that incorporates a rounded portion in its shape (as in Radius products).
  21. Area on an off round tin where the metal bends to form a “curved corner”; on a cover it is the area where the top surface bends or tapers downward to for the skirt.
  22. A system for using a centralized server to perform CHAP authentication on behalf of storage nodes.
  23. The radius in pixels of an imaginary cilinder enclosing the object. It is used for colision detection.
  24. [ ráydee əss ] (plural ra·di·i [ ráydee  ] or ra·di·us·es)
  25. The measurement of a curved surface as applied mainly to lenses.