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Observable

Noun CEFR B2
əbˈzɜː.və.bəl

Definitions

Any physical property that can be observed and measured directly and not derived from other properties

Equivalents

9 more languages

Examples

“Temperature is an observable but entropy is derived.”
“In quantum mechanics, observables correspond to Hermitian operators. Also, they act a lot like⟳ random variables. Taking their expected value one may recover⟳ something resembling a classical observable.”

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

observable universe observableness Observably Observance Observances observandum

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