radius

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See also: Radius and radíus

English[edit]

A radius shown in red

Etymology[edit]

From Latin radius ‎(ray)

Pronunciation[edit]

Noun[edit]

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
  4. (geometry) A line segment between any point of a circle or sphere and its center.
  5. (geometry) The length of this line segment.

Synonyms[edit]

  • (vein of insect wing): R

Related terms[edit]

Translations[edit]

See also[edit]

Anagrams[edit]


Crimean Tatar[edit]

Etymology[edit]

Latin radius.

Noun[edit]

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

  1. radius.

Declension[edit]

References[edit]

  • Mirjejev, V. A.; Usejinov, S. M. (2002) Ukrajinsʹko-krymsʹkotatarsʹkyj slovnyk [Ukrainian – Crimean Tatar Dictionary][1], Simferopol: Dolya, ISBN 966-7980-89-8

Esperanto[edit]

Verb[edit]

radius

  1. conditional of radii

French[edit]

Noun[edit]

radius m ‎(plural radius)

  1. (anatomy) radius

Anagrams[edit]

External links[edit]


Latin[edit]

Etymology[edit]

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).[1]

Pronunciation[edit]

Noun[edit]

radius m ‎(genitive radiī); second declension

  1. ray (of light)
  2. staff, rod
  3. spoke (of a wheel)

Inflection[edit]

Second declension.

Case Singular Plural
nominative radius radiī
genitive radiī radiōrum
dative radiō radiīs
accusative radium radiōs
ablative radiō radiīs
vocative radie radiī

Descendants[edit]

References[edit]

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

Norwegian Bokmål[edit]

Norwegian Wikipedia has an article on:

Wikipedia no

Etymology[edit]

From Latin radius

Noun[edit]

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

  1. (geometry) radius

References[edit]


Norwegian Nynorsk[edit]

Norwegian Nynorsk Wikipedia has an article on:

Wikipedia nn

Etymology[edit]

From Latin radius

Noun[edit]

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

  1. (geometry) radius

References[edit]