| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| sour gum |
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| NOUN: | A deciduous tree (Nyssa sylvatica) of the eastern United States and Mexico, having glossy, somewhat leathery leaves and soft wood. Also called black gum, pepperidge.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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