What does enantiomorph mean?
An enantiomorph is one of a pair of objects that are mirror images of each other yet cannot be made to coincide through any rotation or repositioning — much like a person's left and right hands. The term appears most often in scientific contexts, particularly crystallography and chemistry, where certain crystals and molecular structures occur naturally in left-handed and right-handed forms. Such pairs are said to be enantiomorphic, and this property of handedness is known as chirality. Beyond the laboratory, the word occasionally serves as a metaphor for any two things that resemble each other closely but differ in an irreducible, reversed way. Though technical in register, enantiomorph captures a precise idea for which ordinary language has no single word, making it valuable wherever exactness about mirrored, non-superimposable form matters.
nounAn object that is the mirror image of another object but cannot be superimposed on it, as with left- and right-handed forms of the same molecule or crystal.
- Any object that exists in two forms which are mirror images of each other and cannot be superimposed by rotation or translation (used especially in chemistry and crystallography).
"The two crystals are enantiomorphs: each is the mirror image of the other, yet no rotation brings them into coincidence."
"Quartz occurs in two enantiomorphic crystalline forms, one left-handed and one right-handed."
"In topology class we studied knots whose mirror images are true enantiomorphs, distinct from the originals."
Regular plural; typically used when referring to both members of a mirror-image pair.
"The mineral specimen contains enantiomorphs of quartz in equal proportions."
Your hands are enantiomorphs of each other — perfect mirror images that no amount of twisting will ever make them match.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of enantiomorph
Enantiomorph derives from Greek 'enantios', meaning 'opposite' or 'contrary', combined with 'morphē', meaning 'form' or 'shape'. The term was coined in the nineteenth century within the emerging science of crystallography to describe mirror-image crystal forms. It shares its Greek root with related terms such as 'enantiodromia' (the tendency of things to turn into their opposites) and the chemical term 'enantiomer'.
Related word forms
How enantiomorph is actually used
A technical term used chiefly in crystallography, chemistry, mathematics, and related sciences; rare in everyday speech. The adjective form is 'enantiomorphic'.
Easily confused with enantiomorph
An enantiomer is specifically a mirror-image molecule, while an enantiomorph can be any non-superimposable mirror-image object, such as a crystal, a shape, or a structure.