Medical Dictionary

ultrastructure

noun ul·tra·struc·ture \ˈəl-trə-ˌstrək-chər\

Medical Definition of ULTRASTRUCTURE

:  biological structure and especially fine structure (as of a cell) not visible through a light microscope
ul·tra·struc·tur·al \ˌəl-trə-ˈstrək-chə-rəl, -ˈstrək-shrəl\ adjective
ul·tra·struc·tur·al·ly \-ē\ adverb

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