Any of a number of steel tubes, containing boron or other neutron absorber, that are inserted into the core of a nuclear reactor in order to control its rate of reaction

A sporadic uterine contraction during pregnancy; false labour.

(medicine) Synonym of contrast medium

Alternative form of noncontradiction

(programming) A structure used to affect the flow of a program.

(engineering) The subfield of engineering concerned with designing and building controllers and control systems.

plural of control character

A small executive body in municipal government, usually dealing with financial and administrative matters.

plural of board of control

(UK, law) A nominated person who determines the purposes for which and the manner in which any personal data is to be processed. (under the Data Protection Act)