observable

[ uh b-zur-vuh-buh l ]
/ əbˈzɜr və bəl /
SEE SYNONYMS FOR observable ON THESAURUS.COM

adjective

capable of being or liable to be observed; noticeable; visible; discernible: an observable change in attitude.
worthy or important enough to be celebrated, followed, or observed: an observable holiday.
deserving of attention; noteworthy.

Origin of observable

1600–10; < Latin observābilis remarkable, equivalent to observā(re) to observe + -bilis -ble

OTHER WORDS FROM observable

Words nearby observable

obsequent, obsequent stream, obsequies, obsequious, obsequy, observable, observance, observant, observation, observation car, observation post

Words related to observable

detectable, perceptible, discernible, appreciable, noticeable, clear, evident, obvious, open, palpable, patent, perceivable, sensible, tangible, visible, discoverable, recognizable

Example sentences from the Web for observable

Scientific definitions for observable

observable
[ əb-zûr′və-bəl ]

A measurable property of a physical system, such as mass or momentum. In quantum mechanics, observables correspond to mathematical operators used in the calculation of measurable quantities. Operators that do not commute, having a nonzero commutator, correspond to observables that cannot be precisely measured at the same time, such as momentum and position. See also uncertainty principle.