cadre vs radical cell

cadre and radical cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
cadre	Yes	No	No	No
radical cell	Yes	No	No	No

As nouns, radical cell is a hyponym of cadre; that is, radical cell is a word with a more specific, narrower meaning than cadre:

cadre: a small unit serving as part of or as the nucleus of a larger political movement
radical cell: a cell of terrorists (usually 3 to 5 members)

Other hyponyms of cadre include sleeper cell, terrorist cell.

cadre (noun)	radical cell (noun)
a nucleus of military personnel capable of expansion	a cell of terrorists (usually 3 to 5 members)
a small unit serving as part of or as the nucleus of a larger political movement