mass energy

In the first place, there's a full-sized power-reactor, and a mass-energy converter.

We don't have the central power on here; there's a big mass-energy converter, but we're tearing it down to ship out.

Remember those big wire baskets, down at the mass-energy converters?

This was in line with familiar twentieth-century concepts of mass-energy transformation.

There's a partial mass-energy conversion in its rawest form.