Definition of "dauphin" [dau•phin]

• The eldest son of the king of France from 1349 to 1830. (noun)
• Used as a title for such a nobleman. (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.

• "The gap may have narrowed since then, and the reaction has been a blast of anti-Ed stories portraying him as a swivel-eyed baby Bennite, a child insurrectionist compared with his entitled dauphin of a bro."
• "The sister of the dauphin is a good girl, not many years your senior."
• "Which came first the "dauphin" or the region of "Dauphine" which is on the Swiss border?"