Also called false acacia, yellow locust. a North American tree, Robinia pseudoacacia, of the legume family, having pinnate leaves and clusters of fragrant white flowers.
pneumoconiosis of coal miners, caused by coal dust; anthracosis. noun another name for pneumoconiosis black lung An occupational disease of coal miners caused by the long-term inhalation of coal dust, characterized by the presence of coal around the bronchioles on x-ray images. Most patients develop no symptoms, but a few advance to progressive obstruction of […]
magic used for evil purposes; witchcraft; sorcery (contrasted with white magic). noun magic used for evil purposes by invoking the power of the devil
any payment extorted by intimidation, as by threats of injurious revelations or accusations. the extortion of such payment: He confessed rather than suffer the dishonor of blackmail. a tribute formerly exacted in the north of England and in Scotland by freebooting chiefs for protection from pillage. to extort money from (a person) by the use […]
a tree, Acer saccharum nigrum, of eastern and central North America, having furrowed, blackish bark and yellow-green flowers.