subring

[ suhb-ring ]
/ ˈsʌbˌrɪŋ /

noun Mathematics.

a subset of a ring that is a subgroup under addition and that is closed under multiplication.Compare ring1(def 22).

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Origin of subring

First recorded in 1950–55; sub- + ring1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020