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.
Word & Letter Play Forward and Backward. A palindrome is a word (or phrase or sentence) that reads the same from left to right as it does from right to left. For example, a palindrome that means trick or joke is gag. For each of the definitions below, suggest a palindrome. 1  Midday. 2  Title for a lady. 3  Tier. 4  Sound a chick makes. 5  Part of the human body. 6  Something that fails to work. 7  An entertainer's short-term job. 8  Short, quick, down-and-up motion. 9  Screwball. 10  Sound a horn makes.