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tetracyclic

British

/ ˌtɛtrəˈsaɪklɪk /

adjective

chem (of a compound) containing four rings in its molecular structure

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tetracyclic

OL is a tetracyclic triterpenoid isolated from Phellodendri cortex.

From Science Daily ● Jul. 23, 2026

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023