London paste(Med.), a paste made of caustic soda and unslacked lime; -- used as a caustic to destroy tumors and other morbid enlargements. --
London pride. (Bot.)(a)A garden name for Saxifraga umbrosa, a hardy perennial herbaceous plant, a native of high lands in Great Britain.(b)A name anciently given to the Sweet William.Dr. Prior. --
London rocket(Bot.), a cruciferous plant (Sisymbrium Irio) which sprung up in London abundantly on the ruins of the great fire of 1667.