supernatant

nouns

the clear liquid that lies above a sediment or precipitate
is a type of (narrower)
a substance that is liquid at room temperature and pressure

adjectives

of a liquid; floating on the surface above a sediment or precipitate
"the supernatant fat was skimmed off"
is similar to
held up or having the weight borne especially from below
"supported joints in a railroad track have ties directly under the rail ends"
domain category
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions