Meanings of complex entity in English

It is a complex entity, a mosaic of several components.

Snow is a more complex entity than merely frozen rain.

I explained the role of the Church in the complex entity that was the Pax.

It was simply a matter of time before they came together into a more complex entity.

Different studies of its pathophysiologic etiology, however, have shown it to be a complex entity that several authors now consider to be a neurodermatological syndrome.

Modern elevators are strange and complex entities.

Proteins, in short, are complex entities.