The Latin plural of radius is radii. (ray-dee-eye)
It is singular. The plural of "radius" is "radii" with two i's.
Well, the English Plural is momentums and the Foreign Plural is momenta!
Classically, the plural should be radii, (usually pronounced ray-dee-eye) because 'radius' is a Latin word.However, in modern English, radiuses is acceptable.
radius bones radii radiuses
foreign plural:Antennae English Plural:Antennas
It is radii which is the plural of radius
The plural form of radius is radii.
It is singular. The plural of "radius" is "radii" with two i's.
The plural form of apparatus is apparatuses. It has no foreign plural.
Forum---Plural Form Forums,Foreign Plural Form Forumina
The plural of radius is radii.
The plural of radius is radii
The foreign plural of addendum is "addenda."
The foreign plural of "prospectus" is "prospectuses."
The plural of radius is radii.
Well, the English Plural is momentums and the Foreign Plural is momenta!
Stimuli is already the plural of stimulus.