What is Non-matter?

Non-matter definition and meaning on Dictionary terms:
the substance or substances of which any physical object consists or is composed: the matter of which the earth is made.
physical or corporeal substance in general, whether solid, liquid, or gaseous, especially as distinguished from incorporeal substance, as spirit or mind, or from qualities, actions, and the like.
something that occupies space.
a particular kind of substance: coloring matter.

a situation, state, affair, or business: a trivial matter.
an amount or extent reckoned approximately: a matter of 10 miles.
something of consequence: matter for serious thought.
importance or significance: decisions of little matter.
difficulty; trouble (usually preceded by the): There is something the matter.
ground, reason, or cause: a matter for complaint.
the material or substance of a discourse, book, etc., often as distinguished from its form.
things put down in words, especially printed: reading matter.
things sent by mail: postal matter.
a substance discharged by a living body, especially pus.
Philosophy. that which by integrative organization forms chemical substances and living things.Aristotelianism.that which relates to form as potentiality does to actuality.

Law. statement or allegation.
Printing. material for work; copy.type set up.

Christian Science. the concept of substance shaped by the limitations of the human mind.

verb (used without object)
to be of importance; signify: It matters little.
Pathology. to suppurate.