Chinese wall

Chinese wall

n.

A barrier, especially one that seriously hinders communication or understanding: "still believe a Chinese wall can exist between public and private selves" (Gail Sheehy).

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[After the Great Wall of China.]

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Chinese wall

n

1. (Economics, Accounting & Finance / Stock Exchange) a notional barrier between the parts of a business, esp between the market makers and brokers of a stock-exchange business, across which no information should pass to the detriment of clients

2. an insurmountable obstacle

Thesaurus

Noun

1.

Chinese Wall - a fortification 1,500 miles long built across northern China in the 3rd century BC; it averages 6 meters in width Great Wall, Great Wall of China Cathay, China, Communist China, mainland China, People's Republic of China, PRC, Red China - a communist nation that covers a vast territory in eastern Asia; the most populous country in the world