Amsinckia am·sinc·kia uncommon noun 1. rough annual herbs of Europe and the Americas: fiddlenecks Synonymsgenus Amsinckia Related words Word family Amsinckia grandifloraAmsinckia intermedia Broader terms plant genus Parts Boraginaceae Part of common amsinckialarge-flowered fiddleneck WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.