Definition of "great-grandparent" [great-grandparent]

• A parent of a grandparent. (noun)

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• "Overall, 17 percent of the medicines ingested belonged to a grandparent or great-grandparent."
• "There are tables and oddments of the depressing sort we can all remember shudderingly from the house of a grandparent or great-grandparent, which remind us why later generations decried the Victorian aesthetic."
• "Ms. SANDWEISS: One-eighth, one great-grandparent of African descent."