substance
basic ontological concept
absolute
reality where no doubt exists
spirit
philosophy and religious concept of the animating essence within humans
dissolved organic matter
water chemistry parameter
Ylem
Hypothetical original substance or state of matter
first matter
base material believed to be the foundation of all matter
adsorbent
solid substance that temporarily binds other substances on its surface
physical substance
substance composed of quantum particle(s)/field(s), such as matter and/or radiation; that of which objects/systems are composed; physical stuff that can be considered concrete (not strictly abstract)