sour gum

sour gum

noun
a tree, Nyssa sylvatica, of eastern North America, having elliptic leaves, dark-blue, berrylike fruit, and wood with a variety of commercial uses.
Also called black gum, beetlebung, pepperidge.
Compare tupelo.


Origin:
1775–85, Americanism

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World English Dictionary
sour gum
 
n
See also tupelo Compare sweet gum black gum, Also called: pepperidge a cornaceous tree, Nyssa sylvatica, of the eastern US, having glossy leaves, soft wood, and sour purplish fruits

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