Soxhlet extractor

Etymology
Invented in 1879 by Franz von Soxhlet.

Noun

 * 1)  A piece of laboratory apparatus consisting of a glass reservoir that sits over a lower flask (containing a boiling solvent) and under a condenser; a sample contained in a paper thimble is placed in the reservoir and soluble materials are continually extracted by the warm solvent and transferred to the lower flask via a siphon.