What does "mirror" mean?

Mirror: That which gives a true representation, or in which a true image may be seen; hence, a pattern; an exemplar. She is mirour of all courtesy. Chaucer. O goddess, heavenly bright, Mirror of grace and majesty divine. Spenser.

Additional senses

  1. 2.(Zoöl.) See Speculum. Mirror carp (Zoöl.), a domesticated variety of the carp, having only three or fur rows of very large scales side. -- Mirror plate. (a) A flat glass mirror without a frame. (b) Flat glass used for making mirrors. -- Mirror writing, a manner or form of backward writing, making manuscript resembling in slant and order of letters the reflection of ordinary writing in a mirror. The substitution of this manner of writing for the common manner is a symptom of some kinds of nervous disease.
  2. 3.To reflect, as in a mirror.

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