potter's clay
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potter's clay
[′päd·ərz ′klā] (materials)
A plastic clay, free from iron and devoid of fissility, suitable for modeling or pottery making or adapted for use on a potter's wheel. Also known as argil; pot earth; potter's earth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.