radius

== English == === Etymology === Borrowed from Latin radius (“ray”). Doublet of ray. === Pronunciation === enPR: rā'-dē-əs, IPA(key): /ˈɹeɪ.di.əs/ Rhymes: -eɪdiəs Hyphenation: ra‧di‧us === Noun === radius (plural radii or radiuses) (anatomy) The long bone in the forearm, on the side of the thumb. (zoology) The lighter bone (or fused portion of bone) in the forelimb of an animal. (entomology) One of the major veins of the insect wing, between the subcosta and the media; the vein running along the costal edge of the discal cell. (geometry) A line segment between any point of a circle or sphere and its center. (geometry) The length of this line segment. 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. (graph theory) The minimum eccentricity of any vertex, for a given graph. ==== Synonyms ==== (vein of insect wing): R ==== Derived terms ==== ==== Related terms ==== radial radiad radiate, radiation ==== Translations ==== === Verb === radius (third-person singular simple present radiuses, present participle radiusing, simple past and past participle radiused) (transitive) To give a rounded edge to. === See also === ulna semidiameter Radius on Wikipedia.Wikipedia Radius (bone) on Wikipedia.Wikipedia === Anagrams === Darius == Crimean Tatar == === Etymology === Borrowed from Russian радиус (radius), from Latin radius. === Noun === radius radius (line segment or length of this line segment) ==== Declension ==== === References === Mirjejev, V. A.; Usejinov, S. M. (2002), Ukrajinsʹko-krymsʹkotatarsʹkyj slovnyk [Ukrainian – Crimean Tatar Dictionary]‎[4], Simferopol: Dolya, →ISBN “radius”, in Luğatçıq (in Russian) == Danish == === Etymology === Borrowed from Latin radius. === Noun === radius c (singular definite radien or radiusen, plural indefinite radier or radiuser) (geometry) radius === References === “radius” in Den Danske Ordbog == Esperanto == === Pronunciation === IPA(key): /raˈdius/ Rhymes: -ius Syllabification: ra‧di‧us === Verb === radius conditional of radii == Faroese == === Noun === radius m (genitive singular radius, plural radiusar) (geometry) radius ==== Declension ==== == French == === Etymology === Borrowed from Latin radius. Doublet of rai, which was inherited. === Pronunciation === IPA(key): /ʁa.djys/ === Noun === radius m (invariable) (anatomy) radius === Further reading === “radius”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012 === Anagrams === durais == Ido == === Verb === radius conditional of radiar == Indonesian == === Etymology === Learned borrowing from Latin radius. === Pronunciation === IPA(key): /raˈdiʊs/ Hyphenation: ra‧di‧us === Noun === radius (plural radius-radius) radius: (mathematics) a line segment between any point of a circle or sphere and its center; the length of this line segment Synonyms: jari-jari, ruji-ruji (anatomy) the long bone in the forearm, on the side of the thumb Synonym: pengumpil area of a circle, commonly with epicenter as center ==== Derived terms ==== === Further reading === “radius”, in Kamus Besar Bahasa Indonesia [Great Dictionary of the Indonesian Language] (in Indonesian), Jakarta: Agency for Language Development and Cultivation – Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia, 2016 == Latin == === Etymology === Of uncertain origin. Some connect it with rādīx and rāmus. Tucker suggests Proto-Indo-European *neredʰ- (“extend forth, rise, outward”) akin to Sanskrit वर्धते (vardhate, “rise, grow”), or from Ancient Greek ἄρδις (árdis, “sharp point”). May ultimately be from Proto-Indo-European *reh₁t- (“bar, beam, stem”). === Pronunciation === (Classical Latin) IPA(key): [ˈra.di.ʊs] (modern Italianate Ecclesiastical) IPA(key): [ˈraː.di.us] === Noun === radius m (genitive radiī or radī); second declension a staff, rod a spoke of a wheel a rod for measurement the radius of a circle; a rotating radial arm (weaving) a shuttle (poetic) a bolt or shaft the spur of a bird's leg the tail-spine of a stingray (anatomy) the radius (the outer bone of a forearm) a ray of light (also reflected) (according to an ancient theory of vision) a ray extending from the eye to the object seen the name of an elongated variety of olive the name of a rod with which geometers make figures in dust, also known as a virga ==== Declension ==== Second-declension noun. 1Found in older Latin (until the Augustan Age). ==== Derived terms ==== radiō radiolus ==== Descendants ==== Learned borrowings === References === === Further reading === “radius” on page 1731 of the Oxford Latin Dictionary (2nd ed., 2012) “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, 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 == Norwegian Bokmål == === Etymology === Borrowed from Latin radius. === Noun === radius m (definite singular radien or radiusen, indefinite plural radier, definite plural radiene) (geometry) radius === References === “radius” in The Bokmål Dictionary. == Norwegian Nynorsk == === Etymology === Borrowed from Latin radius. === Noun === radius m (definite singular radiusen, indefinite plural radiusar, definite plural radiusane) (geometry) radius === References === “radius” in The Nynorsk Dictionary. == Romanian == === Etymology === Borrowed from French radius, Latin radius. Compare the inherited doublet rază (“ray”). === Noun === radius n (plural radiusuri) (anatomy) radius (bone) ==== Related terms ==== radiu