Aludel \Al"u*del\, n. [F. & Sp. aludel, fr. Ar. aluth[=a]l.] (Chem.) One of the pear-shaped pots open at both ends, and so formed as to be fitted together, the neck of one into the bottom of another in succession; -- used in the process of sublimation. --Ure. [1913 Webster]