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radius
ra·di·us
/ ˈrādēəs/
•
n.
(pl. ra·di·i
/ ˈrādēˌī/ or ra·di·us·es)
1.
a straight line from the center 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 center in all directions:
there are plenty of local pubs within a two-mile radius.
2.
Anat.
the thicker and shorter of the two bones in the human forearm. Compare with ulna.
∎
Zool.
the corresponding bone in a vertebrate's foreleg or a bird's wing.
∎
Zool.
(in an echinoderm or coelenterate) any of the primary axes of radial symmetry.
∎
Entomol.
any of the main veins in an insect's wing.
radius |
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Cite this article
"radius." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "radius." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O999-radius.html "radius." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-radius.html |
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RADIUS
RADIUS Acronym for Remote Access Dial-In User Service. A protocol for transmitting authentication requests and responses and associated accounting records across an IP network. RADIUS is frequently used by Internet Service Providers to carry login requests from a modem or other network access device to a central user authentication database. RADIUS is not itself an authentication protocol, but supports a wide range of different authentication methods.
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JOHN DAINTITH. "RADIUS." A Dictionary of Computing. 2004. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. JOHN DAINTITH. "RADIUS." A Dictionary of Computing. 2004. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O11-RADIUS.html JOHN DAINTITH. "RADIUS." A Dictionary of Computing. 2004. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O11-RADIUS.html |
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radius
radius (in anatomy) The smaller of the two bones in the lower section of the forelimb of a tetrapod vertebrate (compare ulna). The radius articulates with some carpal bones and the ulna at the wrist and with the humerus at the elbow. This sophisticated articulation of the radius enables humans (and some other animals) to twist the forearm (see pronation; supination).
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"radius." A Dictionary of Biology. 2004. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "radius." A Dictionary of Biology. 2004. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O6-radius.html "radius." A Dictionary of Biology. 2004. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-radius.html |
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radius
radius †staff of a cross XVI; thicker and shorter bone of the forearm; straight line drawn from the centre of a circle to the circumference XVII; (techn.) rod, bar, ray XVIII. — L. radius staff, spoke, ray, radius of a circle, of the arm, etc.
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Cite this article
T. F. HOAD. "radius." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "radius." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O27-radius.html T. F. HOAD. "radius." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-radius.html |
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radius
radius (ray-di-ŭs) n. the outer and shorter bone of the forearm (compare ulna). It partially revolves about the ulna, permitting pronation and supination of the hand.
—radial adj. |
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"radius." A Dictionary of Nursing. 2008. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "radius." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O62-radius.html "radius." A Dictionary of Nursing. 2008. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-radius.html |
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radius
radius In anatomy, one of the two forearm bones, extending from the elbow to the wrist. The radius rotates around the ulna, permitting the hand to rotate and be flexible.
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"radius." World Encyclopedia. 2005. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "radius." World Encyclopedia. 2005. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O142-radius.html "radius." World Encyclopedia. 2005. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-radius.html |
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radius
radius
1. In tetrapods, the pre-axial bone of the fore limb. 2. In insects, a prominent vein in the anterior of the wing. |
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Cite this article
MICHAEL ALLABY. "radius." A Dictionary of Zoology. 1999. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "radius." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O8-radius.html MICHAEL ALLABY. "radius." A Dictionary of Zoology. 1999. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-radius.html |
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radius
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AILSA ALLABY and MICHAEL ALLABY. "radius." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "radius." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O13-radius.html AILSA ALLABY and MICHAEL ALLABY. "radius." A Dictionary of Earth Sciences. 1999. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-radius.html |
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radius
radius in anatomy: see arm . |
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Cite this article
"radius." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "radius." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1E1-X-radius.html "radius." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-radius.html |
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radius
radius •Bierce, fierce, Pearce, Peirce, pierce, tierce
•Fabius, scabious
•Eusebius
•amphibious, Polybius
•dubious • Thaddeus • compendious
•radius • tedious
•fastidious, hideous, insidious, invidious, perfidious
•Claudius
•commodious, melodious, odious
•studious • Cepheus
•Morpheus, Orpheus
•Pelagius • callipygous • Vitellius
•alias, Sibelius, Vesalius
•Aurelius, Berzelius, contumelious, Cornelius, Delius
•bilious, punctilious, supercilious
•coleus • Julius • nucleus • Equuleus
•abstemious
•Ennius, Nennius
•contemporaneous, cutaneous, extemporaneous, extraneous, instantaneous, miscellaneous, Pausanias, porcellaneous, simultaneous, spontaneous, subcutaneous
•genius, heterogeneous, homogeneous, ingenious
•consanguineous, ignominious, Phineas, sanguineous
•igneous, ligneous
•Vilnius
•acrimonious, antimonious, ceremonious, erroneous, euphonious, felonious, harmonious, parsimonious, Petronius, sanctimonious, Suetonius
•Apollonius • impecunious
•calumnious • Asclepius • impious
•Scorpius
•copious, Gropius, Procopius
•Marius • pancreas • retiarius
•Aquarius, calcareous, Darius, denarius, gregarious, hilarious, multifarious, nefarious, omnifarious, precarious, Sagittarius, senarius, Stradivarius, temerarious, various, vicarious
•Atreus
•delirious, Sirius
•vitreous
•censorious, glorious, laborious, meritorious, notorious, uproarious, uxorious, vainglorious, victorious
•opprobrious
•lugubrious, salubrious
•illustrious, industrious
•cinereous, deleterious, imperious, mysterious, Nereus, serious, Tiberius
•curious, furious, injurious, luxurious, penurious, perjurious, spurious, sulphureous (US sulfureous), usurious
•Cassius, gaseous
•Alcaeus • Celsius
•Theseus, Tiresias
•osseous, Roscius
•nauseous
•caduceus, Lucius
•Perseus • Statius • Propertius
•Deo gratias • plenteous • piteous
•bounteous
•Grotius, Photius, Proteus
•beauteous, duteous
•courteous, sestertius
•Boethius, Prometheus
•envious • Octavius
•devious, previous
•lascivious, niveous, oblivious
•obvious
•Vesuvius, Vitruvius
•impervious, pervious
•aqueous • subaqueous • obsequious
•Dionysius
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Cite this article
"radius." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "radius." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O233-radius.html "radius." Oxford Dictionary of Rhymes. 2007. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-radius.html |
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RADIUS
RADIUS (ˈreɪdɪəs) Religious Drama Society of Great Britain
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Cite this article
FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "RADIUS." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "RADIUS." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O25-RADIUS.html FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "RADIUS." The Oxford Dictionary of Abbreviations. 1998. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O25-RADIUS.html |
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