Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
reference frame | Yes | No | No | No |
space-time | Yes | No | No | No |
reference frame (noun) | space-time (noun) |
---|---|
a system that uses coordinates to establish position | the four-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located |