Remove
 Usage
• Remove[ , ... ] removes symbols completely, so that their names are no longer recognized by Mathematica.
• Remove[" ", " ", ... ] removes all symbols whose names match any of the string patterns  .
Notes
• You can use Remove to get rid of symbols that you do not need, and which may shadow symbols in contexts later on your context path. • Remove["form"] allows metacharacters such as *, as specified in Section A.3.13. • Remove["context`*"] removes all symbols in a particular context. • Remove does not affect symbols with the attribute Protected. • Once you have removed a symbol, you will never be able to refer to it again, unless you recreate it. • If you have an expression that contains a symbol which you remove, the removed symbol will be printed as Removed["name"], where its name is given in a string. • New in Version 1.
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