(n.) The granddaughter of one's brother or sister.
Example Sentences:
(1) They are grandnieces of a normal member of a sibship which included four children with severe retardation and complete thyroid iodide organification defect.
(2) Abigail Disney, grandniece of Walt, has backed up Meryl Streep following the actor's recent comments about Walt Disney where she referred to him as a "gender bigot" and a member of an antisemitic lobbying organisation.
(3) Facebook Twitter Pinterest Painter and sculptor Wendy Vanderbilt Lehman, grandniece of Gertrude Vanderbilt Whitney, founder of the Whitney Museum, Palm Beach, 1964.
Granduncle
Definition:
(n.) A father's or mother's uncle.
Example Sentences:
(1) One of her most striking claims is that Sun Yat-sen, revered as the father of modern China , "raised my grandfather and granduncle as his own sons" – akin to a Briton being reared by Winston Churchill.