ring system

noun

Definition of ring system

: the structure typical of a cyclic chemical compound and consisting of one or more rings (as fused rings) five- and six-membered ring systems — compare skeleton

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“Ring system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ring%20system. Accessed 20 Oct. 2020.

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