1. a chemical group consisting of a methyl group attached to an oxygen atom (-OCH₃)
Usage: chemistry

Examples

• The methoxyl group is commonly found in organic compounds.
• Vanillin contains a methoxyl substituent on its benzene ring.
• The researcher identified the methoxyl functional group using spectroscopy.
• Many natural products contain methoxyl groups in their molecular structure.
• The methoxyl group can be cleaved under acidic conditions.
• Lignin contains numerous methoxyl groups that affect its properties.