semordnilap UK /səˈmɔːdnɪlæp/US /səˈmɔːɹdnɪlæp/ noun1 •A word, phrase, or sentence that has the property of forming another word, phrase, or sentence when its letters are reversed. A semordnilap differs from a palindrome in that the word or phrase resulting from the reversal is different from the original word or phrase.[He] then goes on to credit us with giving him some of the best examples of semordnilaps. — 1965 formssemordnilaps
