adobe

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A sun-dried, unburned brick of clay and straw.
2. n. The clay or soil from which this brick is made.
3. n. A structure built with this type of brick.

Century Dictionary and Cyclopedia

1. n. The Mexican-Spanish name of the sun-dried brick in common use in countries of small rainfall and of inferior civilization.
2. n. Clay or soil from which sun-dried bricks are made, or which is suitable for making them. In the quicksilver-mines of the Pacific coast, a brick made of the finer ores mixed with clay, for more convenient handling in the furnace.
3. Built or made of adobes or sundried bricks. Suitable for making sundried bricks: as, an adobe soil.

Wiktionary

1. n. An unburnt brick dried in the sun.
2. n. A house made of adobe brick.

GNU Webster's 1913

1. n. An unburnt brick dried in the sun; also used as an adjective, .
2. n. Earth from which unburnt bricks are made.
3. n. Alluvial and playa clays of desert and arid regions, differing from ordinary clays of humid regions in containing carbonates and other soluble minerals.

WordNet 3.0

1. n. sun-dried brick; used in hot dry climates
2. n. the clay from which adobe bricks are made