Is there a plural form of "radius"?
I don't know how to say radius in plural. Is there any form for this word? Or is it just radiuses?
12 answers from our tutors
Hello Cungkhe, The word 'Radius' comes from the Latin word meaning 'spoke of a chariot wheel'. This means it doesn't follow our usual rules for making nouns plural (adding s or es). The first official and more formal plural for 'radius', because of this Latin heritage, is 'Radii'. It is pronounced the same in both British and American English = [ray-dee-eye]. I would advise using this form in FORMAL writing. The second plural for 'radius' is one that has become more popular over the years, 'Radiuses'. This is often referred to as the 'conversation English plural'. This is pronounced [ray-dee-us-iz]. I would advise using this form in your everyday English. So to sum up Cungkhe, Radii = more formal and academic English Radiuses = more informal, conversational English I hope that helps Best wishes Laura
Hello , radius has a somewhat awkward plural ....radii the same as for instance stimulus /stimuli but in your case radii had already had one i from its word stem. In a highly academic context , you should use formal plural form radii , but in an informal or neutral context , you might like to use the plural form radiuses . Here is another example : forums/ fora or forums ......some people opt for the former , others choose to use the latter . If you are writing an academic thesis , do consult your mentor or university professor which one is more appropriate in line with the level of formality and register used
You can use both. Radii would be more formal and radiuses would be an 'easier' everyday use.
Radiuses is the English plural version whilst Radii would be the Latin plural version, If im not mistaken.
The answer is radii or radiuses. Hippopotamus becomes hippopotami in the same fashion.
the plural of the word "radius" is actually " radii"
Hi there the plural for radius is radii
"radius" itself is in plural form the singular is radii [reidai]
You can use either radii or radiuses. Depending on where you are, one will be more common than the other regionally.
Radii is sometimes considered more formal although I hear used more than radiuses. Radiuses which is sometimes considered to be used more in conversational English.
Hi Cungkhe, the plural for radius can either be radii or radiuses but the most common one is radii.