Hot answers tagged palindrome
Detartrated. Edit: surprise, surprise, Wikipedia has more: The longest palindromic word in the Oxford English Dictionary is the onomatopoeic tattarrattat, coined by James Joyce in Ulysses (1922) for a knock on the door. The Guinness Book of Records gives the title to detartrated, the preterit and past participle of detartrate, a chemical term meaning to ...
Wikipedia: In English, two palindromic novels have been published: Dr Awkward & Olson in Oslo by Lawrence Levine (1986, 31954 words), and Satire: Veritas by David Stephens (1980, 58795 words). In French, Oulipo writer George Perec's "Grand Palindrome" (1969) is 5,556 letters in length. In Hebrew, Ghil'ad Zuckermann wrote a 153-word palindromic story ...
The longest coherent palindromic statement sentence I've ever heard of was reported by Brendan Gill of The New Yorker, which I encountered in a book of his some years ago. T. Eliot, top bard, notes putrid tang emanating, is sad; I'd assign it a name: gnat dirt upset on drab pot toilet.
I think the word you may want is dihedral. The only numbers that can appear in such a construction are 0, 1, 2, 5, and 8, and the property primarily applies to numbers displayed on a calculator or using LED's. There are also dihedral letters, namely the capitals H, I, O, and X.
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