This is the 13012th most frequent Polish word.
odgromowej
"Lightning protection" (related to devices or systems protecting against lightning).
Here, 'odgromowy' is used as an adjective describing the protection system related to lightning strikes.
System odgromowy chroni budynek przed wyładowaniami atmosferycznymi.
The lightning protection system protects the building from atmospheric discharges.
In this sentence, 'odgromowa' serves as an adjective qualifying 'installation', indicating that it pertains to preventing lightning damage.
Instalacja odgromowa jest niezbędna w wysokich budynkach.
The lightning installation is essential in tall buildings.
Here, 'odgromowymi' is the instrumental plural form of 'odgromowa', modifying 'installations', showing application of grammar rules in context.