"Cosmonault" is not a recognized term. It's likely a misspelling of cosmonaut, which is the term used in Russia and other former Soviet republics for astronauts.

Here's a breakdown:

* Cosmonaut: A person trained to travel in space, specifically used in Russia and countries formerly part of the Soviet Union.

* Astronaut: A person trained to travel in space, used primarily in the United States and other countries.

Both terms refer to the same profession, just with different origins and usage.