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1.
Originated in the bumpin down of Roswell, is a description of a crew that likes to burn blizzies and drank brew. Some people can consider them selfs to me rad, but shit were way beyond that, thats why we are FRADICAL. The meaning of this word is fucking radical. It can be used to describe anything sick or extreme.
Mayne i saw dem Fradical Boiz up at that party and bruh bruh the shit they was doin was striaght up wild.

Damn thats sum hella fradical nug

Son we are about to get fradical tonight up in the bitch!!!
by Fradical Boi August 30, 2010
 
2.
in math (particularly college algebra and and sometimes pre-calculus), a term used to describe a fraction with a radical in either the denominator or numerator
find the domain of the function which contains a fradical.
by sirenista March 06, 2011