common dandelion com·mon·dan·delion uncommon noun 1. Eurasian plant widely naturalized as a weed in North America; used as salad greens and to make wine Synonymscommon dandelionTaraxacum ruderaliaTaraxacum officinale Related words Broader terms dandelion Part of dandelion green WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.