Definition of "granduncle" [grand•un•cle]

• See great-uncle. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "‘No. The granduncle is a diamond merchant, with contacts, of course, in his native city, but it seems he has a house in No.th No.folk and an office in Hatton Garden."
• "Unless a member of the Vanguard or the Scarlet Scholars (both groups paying attention to what most consider obscure and nigh-useless knowledge), even most paranormal agents active today have only heard of the Bleak Baron Frederick or his granduncle Wolfgang and their works on fighting monsters."
• "Like many passionate social conservatives, Mr. Santorum can sound a little dour, like your granduncle who says the country is going to hell on the installment plan."