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Noticeable vs Observable - What's the difference?

noticeable | observable |

As adjectives the difference between noticeable and observable

is that noticeable is worthy of note; significant while observable is able to be observed.

As a noun observable is

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

noticeable

English

Adjective

(en adjective)
  • Worthy of note; significant.
  • *{{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)
    • , chapter=6 citation , passage=Even in an era when individuality in dress is a cult, his clothes were noticeable . He was wearing a hard hat of the low round kind favoured by hunting men, and with it a black duffle-coat lined with white.}}
  • Capable of being seen or noticed.
  • * November 17 2012 , BBC Sport: Arsenal 5-2 Tottenham [http://www.bbc.co.uk/sport/0/football/20278355]
    • The dismissal of a player who left Arsenal for Manchester City before joining Tottenham gave the home players and fans a noticeable lift.

    observable

    English

    Adjective

    (en adjective)
  • Able to be observed.
  • * The strange new star was at the edge of the observable universe
  • Deserving to be observed.
  • * Easter is an observable holiday

    • Noun

    (wikipedia observable) (en noun)
  • (physics) Any physical property that can be observed and measured directly and not derived from other properties
    • 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 average one may recover something resembling a classical '''observable .
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