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   radius

   /ˈreɪdɪəs/

   noun

   • 1. a straight line from the centre to the circumference of a circle or sphere.
   • ▪ a radial line from the focus to any point of a curve.
   • ▪ the length of the radius of a circle or sphere.
   • ▪ a specified distance from a centre in all directions: "there are plenty of local pubs within a two-mile radius"
   • 2. the thicker and shorter of the two bones in the human forearm.
   • ▪ the bone in a vertebrate's foreleg or a bird's wing that corresponds to the radius in a human being.
   • ▪ any of the main veins in an insect's wing.
   • 3. a radially symmetric feature in an echinoderm or coelenterate, e.g. an arm of a starfish.

   verb

   • 1. give a rounded form to (a corner or edge): "Brian carefully radiused all the sharp edges and corners"

   Word Origin late 16th century (in radius (sense 2 of the noun)): from Latin, literally ‘staff, spoke, ray’.

   Scrabble Points: 7

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2. People also ask

   What does radius mean?

   • Get a quick, free translation! RADIUS definition: 1. (the length of) a straight line joining the centre of a circle to its edge or the centre of a…. Learn more.

   RADIUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org/dictionary/english/radius

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   What is the radius of a circle?

   • The radius of a circle is the distance from its centre to its outside edge. Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins Publishers 1. 2. 3. 5. 6. 7. 8. a. b. 9. 10. 11. Collins English Dictionary. Copyright © HarperCollins Publishers 1. 2. a. b. 3. a. b. 4. 5. a. b. 6. Zoology a. b.

   RADIUS definition and meaning | Collins English Dictionary

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   What is a ten-mile radius?

   • The radius around a particular point is the distance from it in any direction. Nigel has searched for work in a ten-mile radius around his home. The radius of a circle is the distance from its centre to its outside edge. Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins Publishers 1. 2. 3. 5. 6. 7. 8. a. b. 9. 10. 11.

   RADIUS definition and meaning | Collins English Dictionary

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   What does Raio mean?

   • raio, raio [masculine]… Need a translator? Get a quick, free translation! RADIUS definition: 1. (the length of) a straight line joining the centre of a circle to its edge or the centre of a….

   RADIUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org/dictionary/english/radius

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   What does'search over a one-mile radius' mean?

   • If you're a detective working a crime investigation, you might be told to "search over a one-mile radius," meaning, scope out everything that's within one mile of the crime scene.

   Radius - Definition, Meaning & Synonyms - Vocabulary.com

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3. dictionary.cambridge.org › dictionary › englishRADIUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   Radius is the length of a straight line from the center of a circle or a sphere to its edge or surface. Learn how to use the word in geometry, anatomy and other contexts, and see translations in different languages.

   • English (US)

     RADIUS meaning: 1. (the length of) a straight line joining...

   • Cambridge Learner's Dictionary

     RADIUS definition: 1. a certain distance from a particular...

4. dictionary.cambridge.org › english › radiusRADIUS | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › english › radius

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   Radius is the length of a straight line from the center of a circle or a sphere to its edge or surface. Learn how to use radius in geometry, anatomy and other contexts, and see translations in different languages.

5. www.merriam-webster.com › dictionary › radiusRadius Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › radius

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   The meaning of RADIUS is a line segment extending from the center of a circle or sphere to the circumference or bounding surface. How to use radius in a sentence.

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7. www.dictionary.com › browse › radiusRADIUS Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › radius

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   Radius definition: a straight line extending from the center of a circle or sphere to the circumference or surface. See examples of RADIUS used in a sentence.

8. www.collinsdictionary.com › dictionary › englishRADIUS definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   Learn the meaning of radius as a straight line, a distance, a bone, or a vein. See examples, synonyms, pronunciation, and word origin of radius.

9. dictionary.cambridge.org › learner-english › radiusRADIUS | meaning - Cambridge Learner's Dictionary

   dictionary.cambridge.org › learner-english › radius

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   Radius is a noun that means a certain distance from a particular point in any direction, or the distance from the centre of a circle to its edge. Learn more about radius with examples, synonyms, translations and related words.

10. www.vocabulary.com › dictionary › radiusRadius - Definition, Meaning & Synonyms - Vocabulary.com

    www.vocabulary.com › dictionary › radius

    Definitions of radius. noun. a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere) see more see less. type of: straight line. a line traced by a point traveling in a constant direction; a line of zero curvature. noun.