A mutual organization.

plural of mutual organization

(finance) An organization in which members do not contribute to the capital of the company by direct investment, but derive their right to profits and votes through their customer relationship.

A form of insurance scheme owned entirely by its policyholders.

plural of mutual inductance

Two people who count each other as friends / plural of mutual friend

Someone who is a friend of two or more people, each of whom may not know each other.

(biology, sociology) The state of cooperation, as opposed to competition, as a factor in evolution and social development.

(law) An incident of multiple assaults and batteries on all sides between involved parties which does not rise to the level of felonious assault or battery, or serious bodily harm, where parties involved are determined to have voluntarily entered into the affray and hence no criminal charges result, in relation to the assaults and batteries.

(politics, public policy, military) The threat of massive retaliation using nuclear weapons should a potential enemy use them first, both sides being annihilated in the event of war.