DEF: Sun-dried clay brick.
EX: San Pedro de Atacama is a town in Chile where everything is built in adobe.
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Merriam-Webster Online Dictionary
adobe (noun)1.
a brick or building material of sun-dried earth and straw
2.
a structure made of adobe bricks
3.
a heavy clay used in making adobe bricks , broadly alluvial or playa clay in desert or arid regions