the difference between any two consecutive terms in an arithmetic progression.
noun, Insurance. 1. the death of an insured party and a beneficiary occurring at the same time in the same accident.
- Common egret
noun See great egret
noun, Mathematics. 1. a number that is a submultiple of all the numbers of a given set. noun 1. another name for common factor common divisor A number that is a factor of two or more numbers. For example, 3 is a common divisor of both 9 and 15. Also called common factor.
- Common entrance
noun 1. (in Britain) an entrance examination for a public school, usually taken at the age of 13