Definition of ultrastructure in English:
 ultrastructure
nounˈʌltrəstrʌktʃəˈəltrəˌstrək(t)ʃər
Biology Fine structure, especially within a cell, that can be seen only with the high magnification obtainable with an electron microscope.
 Example sentencesExamples
-  The stages were used as a basis for transmission electron microscopy study on the ultrastructure of the cell wall during the process of primary and early secondary cell wall formation.
 -  Interpretation of the above results concerning HGK provides intriguing insight into the cell line ultrastructures.
 -  The ultrastructure of normal cilia consists of nine outer microtubule pairs and two single central microtubules.
 -  In patients with a defect of central microtubules, the ultrastructure, and thus the function, of nodal cilia would not be affected.
 -  Moreover, exogenously supplied sugars could improve energy metabolism and survival as well as restore the mitochondrial ultrastructure of both sensitive and tolerant species under anoxia.
 
  Definition of ultrastructure in US English:
 ultrastructure
nounˈəltrəˌstrək(t)ʃərˈəltrəˌstrək(t)SHər
Biology Fine structure, especially within a cell, that can be seen only with the high magnification obtainable with an electron microscope.
 Example sentencesExamples
-  Interpretation of the above results concerning HGK provides intriguing insight into the cell line ultrastructures.
 -  The ultrastructure of normal cilia consists of nine outer microtubule pairs and two single central microtubules.
 -  Moreover, exogenously supplied sugars could improve energy metabolism and survival as well as restore the mitochondrial ultrastructure of both sensitive and tolerant species under anoxia.
 -  In patients with a defect of central microtubules, the ultrastructure, and thus the function, of nodal cilia would not be affected.
 -  The stages were used as a basis for transmission electron microscopy study on the ultrastructure of the cell wall during the process of primary and early secondary cell wall formation.