ultrastructure

noun

ul·​tra·​struc·​ture ˈəl-trə-ˌstrək-chər How to pronounce ultrastructure (audio)
: biological structure and especially fine structure (as of a cell) not visible through an ordinary microscope
ultrastructural adjective
ultrastructurally adverb

Examples of ultrastructure in a Sentence

Recent Examples on the Web 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ultrastructure.' 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

1939, in the meaning defined above

Time Traveler
The first known use of ultrastructure was in 1939

Dictionary Entries Near ultrastructure

Cite this Entry

“Ultrastructure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrastructure. Accessed 28 Mar. 2024.

Medical Definition

ultrastructure

noun
ul·​tra·​struc·​ture ˈəl-trə-ˌstrək-chər How to pronounce ultrastructure (audio)
: biological structure and especially fine structure (as of a cell) not visible through a light microscope
ultrastructurally adverb
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