free expansion

noun

Thermodynamics.

1. the expansion of a gas into an evacuated space without the transfer of heat or the performance of work.

Example Sentences

Mr Cote said the firm would refund fans who had pre-ordered the game, and promised a free expansion to anyone who placed a new pre-order for the revised launch.

From BBC

It’s the result of a year of work during a challenging pandemic and what feels like a significant and free expansion to Sea of Thieves.

From The Verge

In a blog post announcing the release date, the game’s director, Sean Murray, said that the free expansion will contain three major updates rolled into one.

From The Verge

The ejecta can safely be assumed to be in free expansion at times where the dynamical timescale at the time of ejection is .

From Nature

The free expansion takes place after "Return of the Jedi" and 29 years ahead of "Force Awakens" when the New Republic confronted Imperial holdouts on the previously unseen Outer Rim world.

From US News