Aludel

An aludel is a subliming pot used in alchemy and medieval chemistry. The term refers to a range of earthen tubes, or pots without bottoms, fitted one over another, and diminishing as they advance towards the top. The lowest is adapted to a pot, placed in a furnace, wherein the matter to be sublimed is placed. At the top is a head to retain the flo...
Found on http://en.wikipedia.org/wiki/Aludel

Aludel

• (n.) 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.
Found on http://thinkexist.com/dictionary/meaning/aludel/

Aludel

Al'u·del noun [ French & Spanish aludel , from Arabic aluthāl .] (Chemistry) 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.
Found on http://www.encyclo.co.uk/webster/A/64

aludel

pear-shaped pot used in sublimation
Found on http://phrontistery.info/a.html
No exact match found