mirror imagen.adj.
/ˌmɪrər ˈɪmɪdʒ/, U.S. /ˌmɪrər ˈɪmɪdʒ/ A. n.
Something that resembles the image produced by a mirror, in having left and right interchanged or its constituent parts arranged in reverse order but being otherwise identical. Also in extended use.
ΘΚΠ
the world > relative properties > relationship > identity > [noun] > (a form that is a) mirror image
looking-glass image1850
perversion1881
enantiomorph1885
mirror image1885
1885 Encycl. Brit. XIX. 312/1 Two figures or two portions of matter are said to be enantiomorph to each other when these forms are not superposable, i.e., the one will not fit into a mould which fits the other, but the one is identical in form with the mirror image of the other.
1937 ‘G. Orwell’ Road to Wigan Pier xii. 244 Fascism..is a sort of mirror-image..of a plausible travesty of Socialism.
1961 Lancet 26 Aug. 447/2 The hemispheres are not exact replicas but mirror images of each other.
1966 New Statesman 27 May 775/3 The Black Muslim creed is the mirror image of the white racialist one.
1972 J. McClure Caterpillar Cop v. 68 An element of variety had been introduced by building the bungalows in pairs and making one the mirror image of the other.
1990 Comments on Etymol. 19 viii. 2 The play is a mirror image of reality, i.e. instead of the reality of a living father and a dead son Hamlet, we have in the play a dead father and a living son Hamlet.
B. adj.
Usually with hyphen. Relating to or of the nature of a mirror image.
ΚΠ
1976 Language 52 555 This would have the effect of making CR into a mirror-image rule.
1977 Language 53 31 The part between the asterisks is mirror-image, the rest being constant.
1988 Burda Summer 20/1 This may be to..obtain two mirror image pieces.
This entry has been updated (OED Third Edition, March 2002; most recently modified version published online March 2022).
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n.adj.1885