Reflection

See:

• Reflection (mathematics): a transformation of a space\n* Reflection (physics): a wave phenomenon\n* Reflection (computer science): a programming language feature for metaprogramming\n* Reflection (electrical): reflected voltage in an electrical signal due to an impedance change\n* Reflection (album): album released by the heavy metal/goth metal band Paradise Lost in 1998.

In some British spellings, reflection may appear as reflexion.