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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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abstraction, abstract entity go
a general concept formed by extracting common features from specific examples
a general concept formed by extracting common features from specific examples
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measure, quantity, amount go
how much there is or how many there are of something that you can quantify
how much there is or how many there are of something that you can quantify
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fundamental quantity, fundamental measure go
one of the four quantities that are the basis of systems of measurement
one of the four quantities that are the basis of systems of measurement
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round-trip light time, RTLT
the elapsed time it takes for a signal to travel from Earth to a spacecraft (or other body) and back to the starting point
the elapsed time it takes for a signal to travel from Earth to a spacecraft (or other body) and back to the starting point
noun.time
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