lightning conductor is a noun meaning "a metallic conductor that is attached to a high point and leads to the ground; protects the building from destruction by lightning". It carries one recorded sense.
a metallic conductor that is attached to a high point and leads to the ground; protects the building from destruction by lightning
Definitions, synonyms and semantic relations for lightning conductor come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.