English Online Dictionary. What means radius? What does radius mean?
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.
Synonyms
- (vein of insect wing): R
Related terms
- radial
- radiate, radiation
Translations
See also
- ulna
- semidiameter
- Radius (bone) on Wikipedia.Wikipedia
Anagrams
- Darius
Crimean Tatar
Etymology
Borrowed 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][1], Simferopol: Dolya, →ISBN
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
Verb
radius
- conditional of radii
Faroese
Noun
radius m (genitive singular radius, plural radiusar)
- (geometry) radius
Declension
Template:fo-decl-noun-m52
French
Etymology
Borrowed from Latin radius. Doublet of rai, which was inherited.
Pronunciation
- IPA(key): /ʁa.djys/
Noun
radius m (plural radius)
- (anatomy) radius
Further reading
- “radius” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).
Anagrams
- durais
Ido
Verb
radius
- conditional of radiar
Latin
Etymology
Of uncertain origin. Some have tried to connect it to rādīx. 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) IPA(key): /ˈra.di.us/, [ˈra.d̪i.ʊs]
- (Ecclesiastical) IPA(key): /ˈra.di.us/, [ˈraː.d̪i.us]
Noun
radius m (genitive radiī or radī); second declension
- ray (of light)
- staff, rod
- spoke (of a wheel)
Declension
Second-declension noun.
1Found in older Latin (until the Augustan Age).
Derived terms
- radiō
- radiolus
Descendants
References
- 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, 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