By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. For the sake of usefulness people often need to approximate pi.
Definition and Examples of Literary Terms. The term palindrome is derived from two Greek words âpalinâ means again and âdromosâ means way or direction. It is defined as a number, a word, a sentence, a symbol or even signs that can be read forward as well as backward or in reserve order with the same effects and meanings.
PALINDROME: A word, sentence, or verse that reads the same way backward or foreward. Certain words in English naturally function as palindromes: for instance, civic, rotor, race car, radar, level and so on. However, when individuals seek to combine several words at once, the result becomes a sort of perverse art.