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WordReference Random House Unabridged Dictionary of American English © 2024wal′nut fam′ily, - Plant Biologythe plant family Juglandaceae, characterized by deciduous trees having alternate, pinnately compound leaves, male flowers in tassellike catkins and female flowers in clusters, and edible nuts enclosed in a thick-walled or leathery husk, and including the butternut, hickory, pecan, and walnut.
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