Supernatant
Pronunciation : Su`per*na"tant
Part of Speech : a.
Etymology : [L. supernatanus, p.pr. of supernatare to swim above; super above + natare to swim.]
Definition : Defn: Swimming above; floating on the surface; as, oil supernatant on water. SUPERNATANT Su`per*na"tant, n. (Chem.)
Defn: The liquid remaining after solids suspended in a liquid have been sedimented by gravity or by centrifugation. Contrasted with the solid sediment, or (in centrifugation) the pellet.
Source : Webster's Unabridged Dictionary, 1913