See also: Radius, RADIUS, and radíus

EnglishEdit

 
The radius of a circle, shown in red

EtymologyEdit

Borrowed from Latin radius (ray). Doublet of ray.

PronunciationEdit

  • enPR: rā'-dē-əs, IPA(key): /ˈɹeɪ.di.əs/
  • (file)
  • Rhymes: -eɪdiəs
  • Hyphenation: ra‧di‧us

NounEdit

radius (plural radii or radiuses)

  1. (anatomy) The long bone in the forearm, on the side of the thumb.
  2. (zoology) The lighter bone (or fused portion of bone) in the forelimb of an animal.
  3. (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.
  4. (geometry) A line segment between any point of a circle or sphere and its center.
    Fatima claims to have visited all the bars within a five-mile radius of her Manhattan apartment.
  5. (geometry) The length of this line segment.
  6. 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.

SynonymsEdit

  • (vein of insect wing): R

Derived termsEdit

Related termsEdit

TranslationsEdit

See alsoEdit

AnagramsEdit


Crimean TatarEdit

EtymologyEdit

Borrowed from Latin radius.

NounEdit

radius

  1. radius (line segment or length of this line segment)

DeclensionEdit

ReferencesEdit

  • Mirjejev, V. A.; Usejinov, S. M. (2002) Ukrajinsʹko-krymsʹkotatarsʹkyj slovnyk [Ukrainian – Crimean Tatar Dictionary]‎[1], Simferopol: Dolya, →ISBN

DanishEdit

 
Danish Wikipedia has an article on:
Wikipedia da

EtymologyEdit

Borrowed from Latin radius.

NounEdit

radius c (singular definite radien or radiusen, plural indefinite radier or radiuser)

  1. (geometry) radius

ReferencesEdit


EsperantoEdit

VerbEdit

radius

  1. conditional of radii

FaroeseEdit

NounEdit

radius m (genitive singular radius, plural radiusar)

  1. (geometry) radius

DeclensionEdit

Template:fo-decl-noun-m52


FrenchEdit

EtymologyEdit

Borrowed from Latin radius. Doublet of rai, which was inherited.

PronunciationEdit

NounEdit

radius m (plural radius)

  1. (anatomy) radius

Further readingEdit

AnagramsEdit


IdoEdit

VerbEdit

radius

  1. conditional of radiar

IndonesianEdit

 
Indonesian Wikipedia has an article on:
Wikipedia id

EtymologyEdit

Learned borrowing from Latin radius.

PronunciationEdit

  • IPA(key): /raˈdiʊs/
  • Hyphenation: ra‧di‧us

NounEdit

radius (first-person possessive radiusku, second-person possessive radiusmu, third-person possessive radiusnya)

  1. radius:
    1. (mathematics) a line segment between any point of a circle or sphere and its center; the length of this line segment.
      Synonym: jari-jari
    2. (anatomy) the long bone in the forearm, on the side of the thumb.
      Synonym: pengumpil
  2. area of a circle, commonly with epicenter as center.

Derived termsEdit

Further readingEdit


LatinEdit

EtymologyEdit

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).[1] May ultimately be from Proto-Indo-European *reh₁t- (bar, beam, stem).

PronunciationEdit

NounEdit

radius m (genitive radiī or radī); second declension

  1. a staff, rod
    1. a spoke of a wheel
    2. a rod for measurment
    3. the radius of a circle; a rotating radial arm
    4. (weaving) a shuttle
    5. (poetic) a bolt or shaft
    6. the spur of a bird's leg
    7. the tail-spine of a stingray
    8. (anatomy) the radius (the outer bone of a forearm)
  2. a ray of light (also reflected)
    1. (according to an ancient theory of vision) a ray extending from the eye to the object seen
  3. the name of an elongated variety of olive

DeclensionEdit

Second-declension noun.

Case Singular Plural
Nominative radius radiī
Genitive radiī
radī1
radiōrum
Dative radiō radiīs
Accusative radium radiōs
Ablative radiō radiīs
Vocative radie radiī

1Found in older Latin (until the Augustan Age).

Derived termsEdit

DescendantsEdit

Learned borrowingsEdit

ReferencesEdit

  1. ^ Tucker, T.G., Etymological Dictionary of Latin, Ares Publishers, 1976 (reprint of 1931 edition).

Further readingEdit

  • 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

Norwegian BokmålEdit

 
Norwegian Wikipedia has an article on:
Wikipedia no

EtymologyEdit

Borrowed from Latin radius.

NounEdit

radius m (definite singular radien or radiusen, indefinite plural radier, definite plural radiene)

  1. (geometry) radius

ReferencesEdit


Norwegian NynorskEdit

 
Norwegian Nynorsk Wikipedia has an article on:
Wikipedia nn

EtymologyEdit

Borrowed from Latin radius.

NounEdit

radius m (definite singular radiusen, indefinite plural radiusar, definite plural radiusane)

  1. (geometry) radius

ReferencesEdit


RomanianEdit

EtymologyEdit

Borrowed from French radius, Latin radius. Compare the inherited doublet rază (ray).

NounEdit

radius n (plural radiusuri)

  1. (anatomy) radius (bone)

Related termsEdit