noun
Usage: usually capitalized C
: a European thistle ( Cirsium arvense ) naturalized in the United States and Canada where it is a pernicious weed
noun
Usage: usually capitalized C
: a European thistle ( Cirsium arvense ) naturalized in the United States and Canada where it is a pernicious weed
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012