n. & v.
--n.
1. a polished surface, usu. of amalgam-coated glass or metal, which reflects an image; a looking-glass.
2 anything regarded as giving an accurate reflection or description of something else.
--v.tr. reflect as in a mirror.
Phrases and idioms:
mirror carp a breed of carp with large shiny scales. mirror finish a reflective surface. mirror image an identical image, but with the structure reversed, as in a mirror. mirror symmetry symmetry as of an object and its reflection. mirror writing backwards writing, like ordinary writing reflected in a mirror.
Etymology: ME f. OF mirour ult. f. L mirare look at