Прочитайте текст и найдите соответствующий перевод подчеркнутого слова.
Building construction has its own history, which is marked by a number of trends. Let’s describe some of them. One of these trends is increasing durability of the materials. The first building materials were perishable. We mention leaves, branches and animal hides. Later people began to use more durable natural materials such as clay, stone, timber. Finally, synthetic materials such as bricks, concrete, metals, plastics were used in building.