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the structure visible only under the ultramicroscope and electron microscope.
Structures or particles seen with the electron microscope.
Synonym(s): fine structure
ultrastructure/ul·tra·struc·ture/ (-struk″chur) the structure beyond the resolution power of the light microscope, i.e., visible only under the ultramicroscope and electron microscope.
The detailed structure of a biological specimen, such as a cell, tissue, or organ, that can be observed only by electron microscopy. Also called fine structure.
a structure so small that it can be viewed only with an ultramicroscope or electron microscope.
ultrastructurethe fine detail of CELL structure, which requires the use of the ELECTRON MICROSCOPE for proper visualization.
the structure visible under the electron microscope.