pl. of Radius., of Radius
radii
Radii is the plural of the word 'radius'. It comes from the Latin word of the same spelling meaning beam, staff or rod. Most European languages derived from Latin.
Radii is a brand of sports footwear.
There are infinite radii in a sphere.
The plural of radius is radii.
2 radii = one diameter
the single form of radii is radius
A hydrogen atom has the smallest radii.
These three radii are of different lengths.
It is radii which is the plural of radius
The covalent radii is for atoms.
The noun radii is already a plural. The singular is radius.