Definition of "trimethylated" []

• Simple past tense and past participle of trimethylate. (verb)
• Methylated by the addition of three methyl groups (adjective)

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• "The reason that these other nutrients can cause choline deficiency inolves the unusual chemical structure of choline as a "trimethylated" molecule."
• "Choline is trimethylated, meaning three methyl groups are attached."
• "There are also, of course, trimethylated benzenes, and compounds where the substituted groups are more complex than methyl groups."