(neuroanatomy) A region of the central nervous system containing myelinated nerve fibres and no dendrites

of, or relating to facts only; literal, realistic / lacking emotion or colour / straightforward, blunt, frank; treating the situation as normal; not embarrassed, coy, or dramatic.

Feces.

Any solid or liquid in a finely subdivided state, especially when considered as an atmospheric pollutant.

(sciences) Any of the different phases of matter whose properties are dependent on the motions and forces of the molecules of which they are composed.

The residues of dead plants and animals in various stages of decomposition

As though stating a fact. / As though the situation is normal and not unusual; not dramatically or fancifully.

(physics) A proposed form of matter that includes strange quarks in addition to the usual up and down quarks of nuclear matter.

(physics) matter composed of baryons and electrons

The property of behaving in a matter-of-fact manner.