Definition of stereoisomer in English:

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Pronunciation: /ˌstɛrɪəʊˈʌɪsəmə/
Pronunciation: /ˌstɪərɪəʊˈʌɪsəmə/


Each of two or more compounds differing only in the spatial arrangement of their atoms.
Example sentences
  • Enantiomers are stereoisomers whose molecules are nonsuperposable mirror-images of each other.
  • Most importantly, stereoisomers are not spatially superimposable.
  • For instance, in the case of the two active stereoisomers we showed that only the stereochemistry at the amine and hydroxyl functions on the scaffold were important - the third chiral centre is not.



Pronunciation: /ˌstɛrɪəʊʌɪsəˈmɛrɪk/
Example sentences
  • As tartaric acid possesses two stereogenic carbon atoms, it exists in three stereoisomeric forms.
  • The structural and thermodynamic features of these stereoisomeric adducts are also discussed in relation to their reported low susceptibilities to nucleotide excision repair.
  • However, significant differences in the structure of the two linked channels, which arise from a different orientation of the two stereoisomeric forms of the dioxolane ring with respect to the axis of the pore, were identified.


Example sentences
  • The second major type of isomerism is stereoisomerism.
  • Structural isomerism is not a form of stereoisomerism, and is dealt with on a separate page.
  • Thereby, stereochemistry and stereoisomerism have been discussed on a common basis.

For editors and proofreaders

Line breaks: stereo|iso¦mer

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