What is "makamou"

In the Japanese tokusatsu production Kamen Rider Hibiki, refers to an assortment of monstrous creatures that usually dwell in the rural areas and consumed human beings as food. In contrast to the humanoid adversaries in other Kamen Rider series, most of the Makamou were usually gigantic monsters of the kaiju genre whose designs and names were based on the Yōkai from Japanese folklores. Furthermore, the Makamou are aided by a mysterious pair of humans. The name Makamou can be translated "Demonized Spirits of the Countryside".