microscopic
adjective
mi·cro·scop·ic
ˌmī-krə-ˈskä-pik 
variants
or less commonly microscopical
1
: resembling a microscope especially in perception
2
a
: invisible or indistinguishable without the use of a microscope
b
: very small or fine or precise
3
: of, relating to, or conducted with the microscope or microscopy
Examples of microscopic in a Sentence
At this point, the embryo is a microscopic clump of only 100 cells.
There is a microscopic crack in the diamond.
He has a microscopic attention span.
He recorded every aspect of his trip in microscopic detail.
a microscopic study of plant tissues
Recent Examples on the Web
The microscopic gene-editors zeroed in on one of Muldoon's mutations so tiny molecular scissors could perform a kind of genetic surgery — literally rewriting his genetic code to fix his defect.
—
Rob Stein, NPR, 15 May 2025
Babesiosis is caused by a microscopic parasite called Babesia microti, which lives in the blood of rodents like shrews, chipmunks and mice.
—Sarah Kuta, Smithsonian Magazine, 13 May 2025
But, in Europe the attention of gold investors turned to the results of an experiment at the European Organization for Nuclear Research (commonly call CERN) where microscopic particles of gold were created in a world first.
—Tim Treadgold, Forbes.com, 13 May 2025
In short, this microscopic gut-dweller pulled off what many pharmaceuticals have struggled to do: reverse the progression of fatty liver disease.
—Discover Magazine, 6 May 2025
See All Example Sentences for microscopic
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Rob Stein, NPR, 15 May 2025
Babesiosis is caused by a microscopic parasite called Babesia microti, which lives in the blood of rodents like shrews, chipmunks and mice.
—Sarah Kuta, Smithsonian Magazine, 13 May 2025
But, in Europe the attention of gold investors turned to the results of an experiment at the European Organization for Nuclear Research (commonly call CERN) where microscopic particles of gold were created in a world first.
—Tim Treadgold, Forbes.com, 13 May 2025
In short, this microscopic gut-dweller pulled off what many pharmaceuticals have struggled to do: reverse the progression of fatty liver disease.
—Discover Magazine, 6 May 2025
See All Example Sentences for microscopic
Cite this Entry
“Microscopic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microscopic. Accessed 19 May. 2025.
Copy CitationKids Definition
microscopic
adjective
mi·cro·scop·ic
ˌmī-krə-ˈskäp-ik
variants
also microscopical
1
: of, relating to, or conducted with the microscope or microscopy
a microscopic examination
2
: resembling a microscope : able to see very tiny objects
some insects have microscopic vision
3
: able to be seen only through a microscope : very small
a microscopic plant
Medical Definition
microscopic
adjective
mi·cro·scop·ic
ˌmī-krə-ˈskäp-ik
variants
or microscopical
1
: of, relating to, or conducted with the microscope or microscopy
2
: so small or fine as to be invisible or indistinguishable without the use of a microscope compare macroscopic, submicroscopic, ultramicroscopic sense 1
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