Amphicarpa amp·hi·carpa uncommon noun 1. very small genus of twining vines of North America and Asia: hog peanut SynonymsAmphicarpaeagenus Amphicarpaeagenus Amphicarpa Related words Word family AmphicarpaeaAmphicarpaea bracteataAmphicarpa bracteata Broader terms rosid dicot genus Parts Papilionoideae Part of hog peanut WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.