observable

adjective

ob·​serv·​able əb-ˈzər-və-bəl How to pronounce observable (audio)
1
2
: capable of being observed : discernible
observability noun
observable noun
observably adverb

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 Here are three observable proofs that can instantly debunk flat-Earth theory. Big Think, 24 June 2024 Curiously, a properly functioning warp drive would not necessarily produce gravitational waves and so would not be observable in this way. The Physics Arxiv Blog, Discover Magazine, 20 June 2024 Because of this movement, the observable universe is estimated to be more like 90 or so billion light-years across! Phil Plait, Scientific American, 8 Mar. 2024 Friday's lights should be observable between 11 p.m. Friday and 1 a.m. Saturday, though they can be seen up until about 3 a.m., according to the National Oceanic and Atmospheric Administration. Drake Bentley, Journal Sentinel, 31 May 2024 See all Example Sentences for observable 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'observable.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1589, in the meaning defined at sense 2

Time Traveler
The first known use of observable was in 1589

Dictionary Entries Near observable

Cite this Entry

“Observable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/observable. Accessed 7 Jul. 2024.

Kids Definition

observable

adjective
ob·​serv·​able əb-ˈzər-və-bəl How to pronounce observable (audio)
: able to be observed : noticeable
observably adverb

More from Merriam-Webster on observable

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