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Cordon bleu a cook of the highest class. The term (in French, literally ‘blue ribbon’) is recorded from the mid 18th century; the blue ribbon once signified the highest order of chivalry in the reign of the Bourbon kings.

cordon sanitaire a guarded line preventing anyone from leaving an area infected by a disease and thus spreading it; the term is recorded from the 19th century.

Subjects: Medicine and Health.

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