1. An area of land or ground that is densely populated or filled with many people, objects, or obstacles
The hiking trail became crowded terrain during the peak season.
A trilha de caminhada tornou-se um terreno lotado durante a alta estação.
2. In military or tactical contexts, an area with limited space and high density of forces or obstacles
The soldiers had to navigate through crowded terrain with limited visibility.
Os soldados tiveram que navegar através de terreno lotado com visibilidade limitada.