1 In this sense it is nearly synonymous with synopsis. ( 2 n.) The tracing of things to their source, and the resolving of knowledge into its original principles. ( 3 n.) A syllabus, or table of the principal heads of a discourse, disposed in their natural order.
A lightning rod or lightning conductor is a iron rod that is used to make lightning strike it, rather than strike something else. It is part of a lightning protection system. Such a system is made of many such rods. These rods are usually placed at high points of buildings and structures.
2. lightning rod-a metallic conductor that is attached to a high point and leads to the ground; protects the building from destruction by lightning. lightning conductor. conductor-a device designed to transmit electricity, heat, etc.. A grounded metal rod placed high on a structure to prevent damage by conducting lightning to the ground. 2. One that attracts criticism, often in such a way that criticism is diverted from something else. n.