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A round-berried, green, seedless or nearly seedless variety of grape widely cultivated in the United States for table use and for drying as raisins.
[After W.B. Thompson (1869-1930), American horticulturist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.