Lychins floscuculi lyc·hinsf·los·cuculi uncommon noun 1. common perennial native to Europe and western Asia having usually pink flowers with ragged petals Synonymsragged robincuckoo flowerLychnis flos-cuculiLychins floscuculi Related words Broader terms lychnis WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.