Found 2 items, similar to Granduncle.
English → English (WordNet)
Definition: granduncle
granduncle
n : an uncle of your father or mother [syn:
great-uncle]
English → English (gcide)
Definition: Granduncle
Granduncle
\Grand“un”cle\, n. [Cf. F. grand-oncle.]
A father's or mother's uncle.
[1913 Webster]