(physics) Alternative form of spacetime. [(uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.]
Used in a Sentence
space-time
Definition, parts of speech, synonyms, and sentence examples for space-time.
Editorial note
Four dimensional space-time has a metric analogous to but not quite the same as euclidean space: the time part has the opposite sign from the space parts.
Examples4
Definitions1
Parts of speech1
Quick take
(physics) Alternative form of spacetime. [(uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.]
Meaning at a glance
The clearest senses and uses of space-time gathered in one view.
Definitions
Core meanings and parts of speech for space-time.
noun
(physics) Alternative form of spacetime. [(uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.]
Example sentences
Four dimensional space-time has a metric analogous to but not quite the same as euclidean space: the time part has the opposite sign from the space parts.
We know that it is possible - the light speed is the limit of speed only in fixed metric space-time, and the Universe itself shows that non-fixed metric space-time(expansion/contraction) can produce FTL speed - just look at all those far galaxies running FTL away from us.
But what if those substances are more than just intoxicants, what if they really trigger some unknown mind-space-time gateway which we haven't yet tapped scientifically, which makes space and time travel possible.
It looks like Google lives in its own space-time (which is not completely a figure of speech since the company maintains its own set of atomic clocks to synchronize its data centers across the world independently from official time sources).
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use space-time in a sentence?
Four dimensional space-time has a metric analogous to but not quite the same as euclidean space: the time part has the opposite sign from the space parts.
What does space-time mean?
(physics) Alternative form of spacetime. [(uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.]
What part of speech is space-time?
space-time is commonly used as noun.