Semordnilap - Derived from Palindrome

PALINDROME, every one should know this term, I knew this term while doing my engineering, during a computer programming session. For those who do not know what is Palindrome, here it is, any word which forms the same word when written in reverse order is a Palindrome, for example, MALAYALAM is same when spelled in reverse. A list of all palindrome words can be found in http://www.palindromelist.net/ , funniest part is palindrome is not a palindrome word :)

"PALINDROME IS NOT A PALINDROME, BUT

SEMORDNILAP IS A SEMORDNILAP"

Now a derived version of palindrome is SEMORDNILAP, hope everyone will face it difficult to pronounce it, atleast I had difficulty pronouncing it :), ok how did this word derive from? it is palindrome written in reverse order, and what does this word mean? Any word which forms a meaningful different word when written in reverse order is a semordnilap. for example LIVED -> DEVIL, there are many words like this, a complete list can be found in http://kgfamily.com/files/semordnilaps.html

Intersting part of this word is, GOOGLE has only 10000 search results for this term. atleast the least search results I have seen so far for a meaningful word in google.