relativistic mass
relativistic mass · relativistic masses
The increased mass of an object moving at relativistic speed relative to an observerThe increased mass of an object moving at relativistic speed relative to an observer.
Meaning
1 senses(countable, uncountable)The increased mass of an object moving at relativistic speed relative to an observer.
(physics) the mass of a body in motion relative to the observer: it is equal to the rest mass multiplied by a factor that is greater than 1 and that increases as the magnitude of the velocity increases
Forms
plural: relativistic masses| Singular | relativistic mass |
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regular
Word family
1 related wordsRelatedspecial relativity
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable