Co-uncle Definition
noun
Of a man, an uncle of one's niece or nephew who is not one's brother; a co-brother-in-law as common uncle to the children of two men's married siblings.
Wiktionary
A man's brother, as uncle in common to the children of a third sibling.
My nephew came up for the summer with my brother and co-uncle George.
Wiktionary
Other Word Forms of Co-uncle
Noun
Singular:
co-uncle
Plural:
co-unclesOrigin of Co-uncle
-
co- + uncle
From Wiktionary
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