* "Semantic palindromes" is a term sometimes used for palindromes that have distinct meanings depending on their direction. For example, "madam" can mean a woman or a respectful form of address.
* "Double-meaning palindromes" or "polysemous palindromes" are other terms that can be used.
* "Ambiguous palindromes" could also apply, since the meaning can be unclear until the context is considered.
Ultimately, the best way to describe these palindromes depends on the specific context and the emphasis you want to place. You can also just use a descriptive phrase like "a palindrome with different meanings."
It's worth noting that the concept of palindromes with different meanings is somewhat rare, especially compared to the number of palindromes that simply spell the same backward and forward.