The clear liquid that lies above a sediment or precipitate.

Of a liquid; floating on the surface above a sediment or precipitate.

Roget 206: high, elevated, eminent, exalted, lofty, tall; gigantic etc. (big) 192; Patagonian; towering, beetling, soaring, hanging (gardens); elevated etc. 307; upper; highest etc. (topmost) 210; high reaching, insessorial^†, perching.    upland, moorland; hilly, knobby [U.S.]; mountainous, alpine, subalpine, heaven kissing; cloudtopt^†, cloudcapt^†, cloudtouching^†; aerial.    overhanging etc. v.; incumbent, overlying, superincumbent^†, supernatant, superimposed; prominent etc. v. 250.    tall as a maypole, tall as a poplar, tall as a steeple, lanky etc. (thin) 203.    ... show more

Roget 305: rising etc. v.. scandent^†, buoyant; supernatant, superfluitant^†; excelsior.