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bluejack

American

[bloo-jak] / ˈbluˌdʒæk /

noun

a small oak, Quercus incana, of the southern U.S., having crooked branches and blue-green leaves.

1855–60, blue + jack ¹, modeled after blackjack; so called from the bluish look of the leaves

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023