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
Despite their at first comparatively microscopic scale, digital natives Glossier and e.l.f.
—
Adam Gale, Fortune, 24 July 2025
The flowers of certain plants release the microscopic, light-weight pollen grains in massive quantities.
—Megan Hughes, Better Homes & Gardens, 24 July 2025
The scanner relies on synchrotron tomography, an advanced imaging method that uses hard X-rays to compile 3D representations of an object, beginning at the microscopic level.
—Andrew Paul Jul 24, Popular Science, 24 July 2025
Earlier this month, the Florida Department of Health said the bacteria led to four deaths in four counties across the state and made at least seven people ill in 2025.
Vibrio vulnificus is not the only microscopic threat sparking worry among swimmers and vacationers.
—Christopher Cann, USA Today, 23 July 2025
See All Example Sentences for microscopic
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Adam Gale, Fortune, 24 July 2025
The flowers of certain plants release the microscopic, light-weight pollen grains in massive quantities.
—Megan Hughes, Better Homes & Gardens, 24 July 2025
The scanner relies on synchrotron tomography, an advanced imaging method that uses hard X-rays to compile 3D representations of an object, beginning at the microscopic level.
—Andrew Paul Jul 24, Popular Science, 24 July 2025
Earlier this month, the Florida Department of Health said the bacteria led to four deaths in four counties across the state and made at least seven people ill in 2025.
Vibrio vulnificus is not the only microscopic threat sparking worry among swimmers and vacationers.
—Christopher Cann, USA Today, 23 July 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 29 Jul. 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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