fire wall

noun
1.
a partition made of fireproof material to prevent the spread of a fire from one part of a building or ship to another or to isolate an engine compartment, as on a plane, automobile, etc.
2.
an integrated collection of security measures designed to prevent unauthorized electronic access to a networked computer system.
Also, fire·wall.


Origin:
1750–60, Americanism

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Fire wall is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a chattering or flighty, light-headed person.
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Example sentences
Current design is a common return system, one main common return located in fire wall south corner.
In this community that perceives itself as a fire wall against indecency, many people sound despondent.
Also all fire wall penetrations must be secured properly.
The judge described the fire wall against anything that resembled cross-ownership or excessive coziness between the new companies.
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