radii

R1A1D2I1I1
/ˈɹeɪ.di.aɪ/

A form of radius — The long bone in the forearm, on the side of the thumb.

Less commonScrabble 6
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Meanings

noun
  1. pluralplural of radius

    The radius of the Sun is equal to about 109 Earth radii.

    1 more example

    Now the centrifugal forces of bodies revolving in the ſame time in different circles being to one another as the radii of the circles (as ſhall be ſhewn when I come to treat of thoſe forces) it follows that the centrifugal force muſt be greateſt at the æquator, and thence be continually diminished towards the poles.

    1767, Richard Helsham, Bryan Robinson, A Course of Lectures in Natural Philosophy, page 31

Rhymes & wordplay

Anagrams

ariidDarii
Cite this entry
APA

radii. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/radii

MLA

“radii.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/radii. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “radii,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/radii.

Source: radii on Wiktionary, CC BY-SA 4.0.