BISCUIT: Words that are capable of giving the pilot nourishment are known as biscuits. Indigestible words are generally avoided, but maybe stored in a ceramic bucket called a bell jar. An object’s CROCODILITY INDEX is the numerical relationship (ratio) between it’s ability to render grain into biscuit (literally, “to crocodile”) and its MITCHELL. An ideal crocodility index is 1. (See LAIKA, MITCHELL.)