ultrastructure
noun
ul·tra·struc·ture
ˈəl-trə-ˌstrək-chər 
: biological structure and especially fine structure (as of a cell) not visible through an ordinary microscope
ultrastructurally
adverb
Examples of ultrastructure in a Sentence
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This process would probably be destructive because there may be no way to access the brain’s ultrastructure except by cutting it into wafer-thin slivers.
—
Christof Kochgiulio Tononi, IEEE Spectrum, 25 May 2017
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Christof Kochgiulio Tononi, IEEE Spectrum, 25 May 2017
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“Ultrastructure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrastructure. Accessed 30 Oct. 2025.
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ultrastructure
noun
ul·tra·struc·ture
ˈəl-trə-ˌstrək-chər
: biological structure and especially fine structure (as of a cell) not visible through a light microscope
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