What is a Disabled Refuge EVC System? An EVC System (Emergency Voice Communication System) is a fixed, monitored and maintained, bi-directional, full duplex voice communication system to assist the orderly evacuation of disabled or mobility impaired people and enhance fire fighters communication during emergencies.
The definition of stalwart is a description for someone who is loyal and strong or for something that is reliable and sturdy. An example of stalwart is a description for a loyal supporter of a cause.
Although stalworth is now archaic, it laid the groundwork for today's meaning of stalwart. In the 12th century, stalworth began to be used to describe strongly built people or animals (a meaning stalwart took on about two centuries later).