gravitational propulsion
Any supposed method of propulsion that warps space or spacetime or interacts in some…Any supposed method of propulsion that warps space or spacetime or interacts in some way with warped space or spacetime.
Meaning
1 senses(uncountable)Any supposed method of propulsion that warps space or spacetime or interacts in some way with warped space or spacetime.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable