aludel

[al-yoo-del]

al·u·del

[al-yoo-del]
noun Chemistry.
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.

Origin:
1550–60; < Middle French < Spanish < Arabic al the + uthāl, variant of ithāl, plural of athlah piece of apparatus
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Aludel is always a great word to know.
So is formaldehyde. Does it mean:
a colorless, toxic, water-soluble gas having a suffocating odor, used chiefly as a disinfectant and preservative, contained in resins and plastics
a neutral crystalline substance, C2H7NO3S, obtained from bile
Collins
World English Dictionary
aludel (ˈæljʊˌdɛl)
 
n
chem a pear-shaped vessel, open at both ends, formerly used with similar vessels for collecting condensates, esp of subliming mercury
 
[C16: via Old French from Spanish, from Arabic al-uthāl the vessel]

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