Edited sentence: ASTRONAUT is a word in the dictionary meaning: a person who travels beyond the earth's atmosphere; also : a trainee for spaceflight Source: Merriam-Webster.But, to be strict in terms:.COSMONAUT is a word on the dictionary meaning: an astronaut of the Soviet or Russian space program Source: Merriam-Webster.SPACE TURIST is a NON EXISTENT word in the dictionary Source Merriam-Webster.The term 'space turist' is clearly and apocriphous term invented by the uneducated press.this people should be called COSMONAUTS, as they have flown above the atmosphere and were trained in the Russian space program