ragweed Syllabification: (rag·weed)Pronunciation: /ˈragˌwēd/Definition of ragweed noun a North American plant of the daisy family. Its tiny green flowers produce copious amounts of pollen, making it a major causative agent of hay fever in some areas. Ambrosia artemisia, family Compositae ragweed in other Oxford dictionaries Definition of ragweed in the British & World English dictionary
