Lon·don n. The capital city of England.
 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.

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