pal·in·drome
noun/ˈpælɪndrəʊm/
/ˈpælɪndrəʊm/
- a word or phrase that reads the same backwards as forwards, for example madam or nurses run
回文（正反读都一样的词语） Word Originearly 17th cent.: from Greek palindromos ‘running back again’, from palin ‘again’ + drom- (from dramein ‘to run’).