Chinese Wall

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Chinese wall

A barrier to communication, understanding, or action: "still believe a Chinese wall can exist between public and private selves" (Gail Sheehy).

[After the Great Wall of China.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Chinese wall

1. (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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Chi′nese Wall′

2. an insuperable barrier or obstacle, as to understanding.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Chinese Wall - a fortification 1,500 miles long built across northern China in the 3rd century BCChinese Wall - a fortification 1,500 miles long built across northern China in the 3rd century BC; it averages 6 meters in width
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
The cheap prices of its commodities are the heavy artillery with which it batters down all Chinese walls, with which it forces the barbarians' intensely obstinate hatred of foreigners to capitulate.
As to Mr Verloc, his intense meditation, like a sort of Chinese wall, isolated him completely from the phenomena of this world of vain effort and illusory appearances.
The importance of safeguarding the principle of Chinese Walls cannot be understated.
Motorola's smartcard will offer internal chinese walls to prevent the different programs loaded on a card from interfering with each other, as well as security firewalls for both software and hardware.
"Focus groups" of marketers are "knocking on the Chinese walls" separating business and editorial departments.
As part of these ongoing initiatives all employees have been provided with training on compliance, anti-money laundering (AML) and 'Chinese Walls' in order to highlight the importance of adhering to regulatory requirements and reporting any misconducts which are vital to the group's growth strategy and assist significantly in achieving the group objective of becoming a leading MEASEA bank by 2020 and a global bank by 2030.
Although she admitted to "Chinese walls" between her office and the Assembly, she did assure us there were no such plans.
Chinese walls should also be put in place to ensure there are no clashes between the SEB's permitting and advisory functions, said AMs.
A European Parliament committee voted in favour of beefing up draft legislation to force online giants to set up Chinese walls between subsidiaries and to get merchants' consent before using their data.
The notion that "Chinese Walls" can mitigate the risks here is laughable, especially when you have gentlemen like Slaley at Barclays, whose ethical practices have been sanctioned by the FCA in the UK, running large multi-national banks.
[And] there are many Chinese walls within the reinsurers' organizations," Carbone said.
Key among these proposals is one proposed a week ago by Danish center-left lawmaker Christel Schaldemose, the lead parliament negotiator, who seeks to set up Chinese walls between subsidiaries, the report says, citing a draft seen by Reuters.