Actually, the plural form radiuses is accepted as correct and has found it's way into dictionaries (see the link below).
The word radius and the plural radii are derived from the Latin word radius, a word for the spoke of a wheel. The plural form is a standard form for a plural in Latin.
radius bones radii radiuses
Classically, the plural should be radii, (usually pronounced ray-dee-eye) because 'radius' is a Latin word.However, in modern English, radiuses is acceptable.
The correct plural form of "foot" is "feet."
The plural form that is not correct: leafsThe correct plural form for the noun leaf is leaves.
The plural form of the noun river is rivers.
No, "dice's" is not the correct form of plural possessive. The correct form is "dice'", without the additional "s."
The correct plural form for "septum" is "septa."
The correct plural form of "sandwich" is "sandwiches."
The correct plural form of "knife" is "knives."
The correct plural form of "wolf" is "wolves." "Wolfs" is not the correct plural form.
No, the correct plural form of reef is reefs. "Reeves" is not a recognized plural form in this context.
No, the correct plural form of the noun wolf is wolves.