Meaning & use
scalar
A quantity that has only magnitude, not direction, unlike a vector.
See it in a sentence
Temperature is a scalar because it has a value but no direction.
The physics teacher explained that speed is a scalar while velocity is a vector.
A note on using this word
Scalar can also function as an adjective describing a quantity or operation involving only magnitude, as in 'scalar multiplication.'
Words with a similar meaning
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Words with an opposite meaning
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