ob·​serv·​able | \ əb-ˈzər-və-bəl How to pronounce observable (audio) \

Definition of observable

2 : capable of being observed : discernible

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Other Words from observable

observability \ əb-​ˌzər-​və-​ˈbi-​lə-​tē How to pronounce observability (audio) \ noun
observable noun
observably \ əb-​ˈzər-​və-​blē How to pronounce observably (audio) \ adverb

Synonyms & Antonyms for observable



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Examples of observable in a Sentence

the size of the observable universe scientists often work with phenomena that are not directly observable
Recent Examples on the Web The dye, which would be invisible to the naked eye but observable through a specialized cellphone app using infrared light, would keep a record of a child's vaccines. Matthew Brown, USA TODAY, "Fact check: Bill Gates is not planning to microchip the world through a COVID-19 vaccine," 13 June 2020 Boston College sociology professor Juliet Schor, who studies consumerism, says there has already been an observable spike in car sales in China post-lockdown. Kate Knibbs, Wired, "The Pandemic Is Transforming the Rental Economy," 8 June 2020 Unlike 'Ouamuamua, comet 2I/Borisov will be observable for an extended period of time, an idea that has excited astronomers. Fox News, "Mysterious interstellar comet Borisov survived its encounter with the sun, new study says," 6 June 2020 Doctors have to rely on inflammatory markers in the blood, as well observable symptoms, to make a subjective call. Jamie Ducharme, Time, "The Hunt to Understand COVID-19's Connection to Kawasaki Disease," 27 May 2020 These two mysterious elements comprise the majority of the universe, but they're only known by their effects on observable matter. Ashley Strickland, CNN, "NASA names Nancy Grace Roman Space Telescope in honor of agency's first chief astronomer," 20 May 2020 From leaves changing color to flower buds opening on a daffodil, phenology simply means the study of observable phases in plant and animal life, called phenophases, and anyone can learn to do it. Marianne Willburn, Better Homes & Gardens, "Keeping a Garden Journal Is the Easiest Way to Become a Better Gardener," 20 May 2020 Data from Orbital Insight, show 937 million barrels of oil in observable storage. Daniel Wolfe, Quartz, "China has stockpiled 76 million barrels of oil since coronavirus lockdowns," 28 Apr. 2020 Anything is possible, but take a closer look at how often definitive predictions about permanent change are simply extrapolations of recently observable trends taken to some maximum extreme. Clay Chandler, Fortune, "As the pandemic rages, designers race to create more face masks and shields," 21 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'observable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of observable

1589, in the meaning defined at sense 2

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Time Traveler for observable

Time Traveler

The first known use of observable was in 1589

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Statistics for observable

Last Updated

23 Jun 2020

Cite this Entry

“Observable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/observable. Accessed 2 Jul. 2020.

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More Definitions for observable


How to pronounce observable (audio)

English Language Learners Definition of observable

: possible to see or notice : able to be observed


ob·​serv·​able | \ əb-ˈzər-və-bəl How to pronounce observable (audio) \

Kids Definition of observable

: noticeable Her cat's shape was observable under the blanket.

Other Words from observable

observably \ -​blē \ adverb

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