The filet is part of the radius, therefore making the term filet radius. A filet radius measures an inside corner. A corner radius measures an outside corner.
noun
Circumference is a noun.
"Ellipse" is a noun.
radius
A radius is not part of pi.
part of speech
The part of speech for this particular word is a noun.
adverb
what part of speech is work
what part of speech is beneath
head of radius
Sashay is a verb. It means to walk in an exaggerated, showy manner, often with hip swaying.
"Did not" or "didn't" is a contraction of the auxiliary verb "did" and the adverb "not," forming a negative past tense construction in English.
Adjective
The word speech is a noun.
It is half of the diameter or radius = diameter/2