Definition of GlaxoSmithKline from the Oxford Advanced Learner's Dictionary



; NAmE
(also Glaxo) (abbreviation GSK)
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a large British-based global company producing many different types of drugs and medicines.The company was formed in 2001 from the merger of two other large drug companies, GlaxoWellcome and SmithKline Beecham, which were themselves formed from companies established in the nineteenth century.