Hello, you have come here looking for the meaning of the word radius. In DICTIOUS you will not only get to know all the dictionary meanings for the word radius, but we will also tell you about its etymology, its characteristics and you will know how to say radius in singular and plural. Everything you need to know about the word radius you have here. The definition of the word radius will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofradius, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
Anything resembling a radius, such as the spoke of a wheel, the movable arm of a sextant, or one of the radiating lines of a spider's web.
1674, Robert Hooke, Animadversions on the Firſt Part of the Machina Coelestis of the Aſtronomer Johannes Hevelius , page 43:
[…] I can do more with a Quadrant, Sextant or Octant, of 1 foot Radius, furniſhed with Teleſcopical Sights and Screws, then can poſſibly be done with any other Inſtrument, furniſhed only with Common Sights, though 10, 20, 30, nay threeſcore foot Radius; […]
^ De Vaan, Michiel (2008) “radius”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 512
^ Tucker, T.G., Etymological Dictionary of Latin, Ares Publishers, 1976 (reprint of 1931 edition).
“radius”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“radius”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
radius in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
radius in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
“radius”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
“radius”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin