or fire wall
Origin of firewall
Examples from the Web for firewall
“We were very careful to build a firewall between that work and our work with independent journalists,” Bourgault said.
I think that the firewall between depression and psychosis is going to be erased.
There is a huge overlap, and this firewall is very much an artifact.
Minority rights matter a lot in a body which was supposed to be a firewall against the haste and folly of popular sentiment.
He is my president, though, and he's the firewall we have against the lunatics taking over.
The copper fuel line curved down from the firewall to a glass sediment cup.It Could Be Anything|John Keith Laumer
Moving quickly, he went over to the place where the control cables came in through the firewall.
You try to get an experimental service running and no one will reconfigure the firewall.Makers|Cory Doctorow
It was just as he turned the lever that undogged the firewall door that he realized his mistake.
He went out again, closing the firewall door behind him and dogging it tight.
British Dictionary definitions for firewall
Science definitions for firewall
Culture definitions for firewall
A means of separating a computer network from outside networks for security purposes. A server outside an organization's own network may be used to funnel all incoming and outgoing traffic to assist in keeping out viruses, as well as to prevent unauthorized outsiders from gaining access to a network.