subject (3 digits), decimal point, sub-section (1-3 digits) and first three letters of the name of the author or editor. For example, 612.6 WAT is a book classification. THIS DEFINITION IS FOR ...
(n.) A number expressed in the scale of tens; specifically, and almost exclusively, used as synonymous with a decimal fraction. (a.) Of or pertaining to decimals; numbered or proceeding by tens; ...