Dictionaryal•u•delPronunciation: (al'yoo-del"), [key] —n. Chem. one of a series of pearshaped vessels of earthenware or glass, open at both ends and fitted one above the other, for recovering the sublimates produced during sublimation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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