adobe

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A building material consisting of clay mixed with straw or dung, fashioned into sun-dried bricks or used as mortar or plaster.
• noun A brick of this material.
• noun The clay or soil used in making this material.
• noun A structure built with adobe bricks.

from The Century Dictionary.

• noun The Mexican-Spanish name of the sun-dried brick in common use in countries of small rainfall and of inferior civilization.
• noun 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.
• Built or made of adobes or sundried bricks. Suitable for making sundried bricks: as, an adobe soil.

from the GNU version of the Collaborative International Dictionary of English.

• noun An unburnt brick dried in the sun; also used as an adjective, .
• noun Western U. S. Earth from which unburnt bricks are made.
• noun (Geol.) Alluvial and playa clays of desert and arid regions, differing from ordinary clays of humid regions in containing carbonates and other soluble minerals.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An unburnt brick dried in the sun.
• noun A house made of adobe brick.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun sun-dried brick; used in hot dry climates
• noun the clay from which adobe bricks are made