radius

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

• enPR: rā'-dē-əs, IPA^(key): /ˈɹeɪ.di.əs/

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• Rhymes: -eɪdiəs
• Hyphenation: ra‧di‧us

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.
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.

• (vein of insect wing): R

• radial
• radiate, radiation

• ulna
• semidiameter
• Radius (bone) on Wikipedia.Wikipedia

• Darius

Borrowed from Latin radius.

radius

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

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

Borrowed from Latin radius.

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

1. (geometry) radius

• “radius” in Den Danske Ordbog

radius

1. conditional of radii

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

• IPA^(key): /ʁa.djys/

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radius m (plural radius)

1. (anatomy) radius

• “radius” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

• durais

radius

1. conditional of radiar

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

• (Classical) IPA^(key): /ˈra.di.us/, [ˈra.di.ʊs]

radius m (genitive radiī); second declension

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

Second declension.

• radiō

• 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

Borrowed from Latin radius.

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

1. (geometry) radius

• “radius” in The Bokmål Dictionary.

Borrowed from Latin radius.

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

1. (geometry) radius

• “radius” in The Nynorsk Dictionary.

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

radius n (plural radiusuri)

1. (anatomy) radius (bone)

• radiu