Meaning of enantiomer in English:


Pronunciation /ɪˈnantɪə(ʊ)mə/ /ɛˈnantɪə(ʊ)mə/


  • Each of a pair of molecules that are mirror images of each other.

    ‘Such isomers are called enantiomers and molecules that have enantiomers are said to be chiral or to show chirality.’
    • ‘As with hands, chiral molecules can occur in two different forms, called enantiomers, which are mirror-images of one another.’
    • ‘One of the principal barriers to high yield is the creation of both enantiomers of a chiral compound, when only one is desired.’
    • ‘Recently, though, it was discovered that life itself can generate a particular enantiomer or chiral form of a particular molecule.’
    • ‘Racemic mixtures contain equal amounts of the two enantiomers.’
    • ‘This development has made it easier to monitor pesticide enantiomers that differ significantly in their toxicity.’


Early 20th century from Greek enantios ‘opposite’ + -mer.