Radii: meaning, definitions and examples

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radii

 

[ หˆreษช.di.aษช ]

Noun
Context #1 | Noun

geometry, plural

Radii is the plural form of radius, which refers to the distance from the center of a circle to any point on its circumference. In three-dimensional space, it can also refer to the distance from the center of a sphere to its surface. The term is commonly used in mathematics, physics, and engineering.

Synonyms

distances, radiuses, span

Examples of usage

  • The circle has a radius of 5 cm, so its radii are also 5 cm.
  • In engineering, understanding the radii of curves is crucial for design.
  • The radii of the two circles differ significantly.
  • To calculate the area, you need to know the radius, but the concept of radii can also be applied.
  • Various shapes can be analyzed using radii for their dimensions.

Translations

Translations of the word "radii" in other languages:

๐Ÿ‡ต๐Ÿ‡น raios

๐Ÿ‡ฎ๐Ÿ‡ณ เคคเฅเคฐเคฟเคœเฅเคฏเคพ

๐Ÿ‡ฉ๐Ÿ‡ช Radien

๐Ÿ‡ฎ๐Ÿ‡ฉ jari-jari

๐Ÿ‡บ๐Ÿ‡ฆ ั€ะฐะดั–ัƒัะธ

๐Ÿ‡ต๐Ÿ‡ฑ promienie

๐Ÿ‡ฏ๐Ÿ‡ต ๅŠๅพ„

๐Ÿ‡ซ๐Ÿ‡ท rayons

๐Ÿ‡ช๐Ÿ‡ธ radio

๐Ÿ‡น๐Ÿ‡ท yarฤฑ รงaplar

๐Ÿ‡ฐ๐Ÿ‡ท ๋ฐ˜์ง€๋ฆ„

๐Ÿ‡ธ๐Ÿ‡ฆ ุฃุดุนุฉ

๐Ÿ‡จ๐Ÿ‡ฟ polomฤ›ry

๐Ÿ‡ธ๐Ÿ‡ฐ polomery

๐Ÿ‡จ๐Ÿ‡ณ ๅŠๅพ„

๐Ÿ‡ธ๐Ÿ‡ฎ polmeri

๐Ÿ‡ฎ๐Ÿ‡ธ radรญus

๐Ÿ‡ฐ๐Ÿ‡ฟ ั€ะฐะดะธัƒัั‚ะฐั€

๐Ÿ‡ฌ๐Ÿ‡ช แƒ แƒแƒ“แƒ˜แƒฃแƒกแƒ”แƒ‘แƒ˜

๐Ÿ‡ฆ๐Ÿ‡ฟ radiuslar

๐Ÿ‡ฒ๐Ÿ‡ฝ radios

Etymology

The word 'radius' originates from the Latin word 'radius', meaning 'ray' or 'spoke of a wheel'. It was adopted into English in the early 19th century, primarily in mathematical contexts. The plural form 'radii' follows the classical Latin pluralization rules, where 'radius' ends in '-us' and changes to '-i' in its plural form. As geometry and the study of circles became more prominent during the development of mathematics, the term 'radius' and its plural 'radii' became essential for describing the properties of circles and spheres. The use of 'radii' is particularly prevalent in fields such as engineering, physics, and astronomy, where precise measurements are critical.

Word Frequency Rank

At position #12,708, this word is part of sophisticated English vocabulary. It's useful for academic or professional contexts where precise language is needed.