Rock-type is one of the eighteen elemental types in the Pokémon series. Pokémon of this type are often characterized by their strong defenses and high physical attack power. They are typically associated with rocky terrains and geological features, making them resistant to many moves, especially those of the Flying, Normal, Poison, and Fire types. However, Rock-type Pokémon are vulnerable to certain types, including Water, Grass, Fighting, Ground, and Steel. This type is known for its diverse range of moves, such as Rock Slide and Stone Edge, which can deal significant damage to opponents. Rock-type Pokémon often play a crucial role in battles due to their durability and offensive capabilities.