common moonseed com·mon·moon·seed uncommon noun 1. a woody vine of eastern North America having large oval leaves and small white flowers and purple to blue-black fruits Synonymscommon moonseedCanada moonseedyellow parillaMenispermum canadense Related words Broader terms moonseed Parts Menispermum WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
