This medium mainly consists of hydrogen and helium, but it is enhanced by traces of other elements contributed by matter expelled from stars.

In this situation, the absorbing/emitting medium consists of massive particles which are in equilibrium with each other, and therefore have a definable temperature.

Ideally the growing medium should consist of some amount of clay.

The medium should consist of peat and clay.

The planting medium should consist of clay, peat, loam or leaf mould and a good layer of sand.

A suitable medium for culturing white worm consists of equal parts of loam and peat which is just moist.

The medium where the amplification takes place, consists of stacks of thin layers of semiconductors which together form quantum wells.

In the Maxwell Garnett Approximation the effective medium consists of a matrix medium with and inclusions with .

The most common medium consists of parallel tubes but others have plates or coils typically made from copper or aluminium.

Simon's artistic medium consists of three equal elements: photography, text, and graphic design.