e/Radical of a ring

Information
has gloss	eng: In ring theory, a branch of mathematics, a radical of a ring is an ideal of "bad" elements of the ring.
lexicalization	eng: radical of a ring
instance of	(noun) jewelry consisting of a circlet of precious metal (often set with jewels) worn on the finger; "she had rings on every finger"; "he noted that she wore a wedding band" ring, band