from the GNU version of the Collaborative International Dictionary of English
- n. clay suitable for, or used in making, bricks.
- n. the common clay, containing some iron, and therefore turning red when burned.
from The Century Dictionary and Cyclopedia
- n. Clay used or suitable for making bricks and tiles; a tolerably pure silicate of alumina, combined with various proportions of sand, and with not more than 2 per cent. of lime and other alkaline earths. The red color of common bricks depends on the presence of a little iron peroxid.
Sorry, no etymologies found.