ob·serv·able
əb-ˈzər-və-bəl 
1
: noteworthy
the trend is observable all over the country
2
: capable of being observed : discernible
the size of the observable universe
ob·serv·abil·i·ty
əbˌzərvəˈbilətē
-zə̄v-,
-zəiv-,
-lətē,
-i
: capacity for or possibility of being observed
Examples of observable in a Sentence
Adjective
the size of the observable universe
scientists often work with phenomena that are not directly observable
Recent Examples on the Web
Phil Plait, Scientific American, 12 June 2026
Price indices work better when quality changes only gradually or in an observable way.
—James Broughel, Forbes.com, 6 June 2026
For Gershman, who is searching for a way to study memory at a molecular level and connect it to observable behavior, the question was an itch that had to be scratched.
—Claire L. Evans, Quanta Magazine, 5 June 2026
Inside, the museum boasts a planetarium, giant-screen theater, exhibition zones, and landscaped outdoor teaching plots organized around regional species and observable plant phenomena.
—Bridget Borgobello
may 30, New Atlas, 30 May 2026
See All Example Sentences for observable
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Adjective
Astronomers have discovered three comets from other stars passing by the sun in recent years, and there should be an observable number of meteoroids burning up in our atmosphere from other stars systems as well.
—Phil Plait, Scientific American, 12 June 2026
Price indices work better when quality changes only gradually or in an observable way.
—James Broughel, Forbes.com, 6 June 2026
For Gershman, who is searching for a way to study memory at a molecular level and connect it to observable behavior, the question was an itch that had to be scratched.
—Claire L. Evans, Quanta Magazine, 5 June 2026
Inside, the museum boasts a planetarium, giant-screen theater, exhibition zones, and landscaped outdoor teaching plots organized around regional species and observable plant phenomena.
—Bridget Borgobello
may 30, New Atlas, 30 May 2026
See All Example Sentences for observable
Cite this Entry
“Observable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/observable. Accessed 18 Jun. 2026.
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