A contract entered into directly between the client and contractor (contracted provider of products or services.) Used especially of contracts involving government agencies or bodies, or entities such as educational institutions.

plural of contrabass clarinet

(logic) A statement that contains a contradiction, or a premise from which one could be derived

(law) An agreement between an employer and an employee in which the employee agrees, as a condition of employment, not to be a member of a labor union whilst employed.

(medicine) Any substance, such as barium sulfate, used in radiography to increase the visibility of internal structures.

Someone who plays the contrabass.

Someone who plays the contrabassoon.

(law) An agreement entered into between two parties for the exchange of a current performance by one for a future bequest by the other.

(cell biology) A vacuole that removes waste or excess water.

plural of contrabassoonist