controlled, ppl. a.
(kənˈtrəʊld)
[f. as prec. + -ed1.]
1. a. Held in check, restrained, dominated; cf. uncontrolled.
| 1586 A. Day Eng. Secretary ii. (1625) 65 The limits of a controuled rule. 1783 Burke East India Bill Wks. IV. 112 Controuled depravity is not innocence. 1888 Pall Mall G. 19 Dec. 3/1 Controlled enthusiasm. |
b. Carried out or investigated under strict rules or in conditions such as to preclude error or deception;
spec. of an experiment: employing a ‘control’ (see
control n. 3 b).
| 1869 W. James Coll. Ess. & Rev. (1920) 2 One narrative personally vouched for and minutely controlled, would be more apt to fix their attention. 1938 Encycl. Brit. Bk. of Yr. 521/1 These controlled experiments [in fire-walking] suggested that ‘faith’ was the secret of immunity. 1962 Lancet 27 Jan. 201/1 A controlled symptom study of intravenous adrenaline in 12 schizophrenic and 12 healthy men. |
c. Of a house or a tenant: subject to rent control.
| 1930 Daily Express 8 Sept. 7/4 If it is a controlled house you are protected. 1967 Guardian 3 Jan. 4/6 She was a ‘controlled’ tenant. |
d. Of the movements of an aircraft: directed by radio from the ground or from another aircraft.
| 1956 W. A. Heflin U.S. Air Force Dict. 140/2 Controlled interception, an interception during which the friendly aircraft are directed from an air or surface station. 1957 B.B.C. Handbk. 86 A controlled descent through rain with the cloud base only a hundred feet above the runway. |
2. Special collocations:
controlled rectifier, a rectifier having a means of controlling its output current;
controlled response, in
Mil. Strategy (see
quot. 1966);
controlled school (see
quot. 1960).
| 1938 S. R. Roget Dict. Electr. Terms (ed. 3) 73/2 Controlled rectifier. 1962 Simpson & Richards Junction Transistors viii. 192 This device..resembles a grid-controlled gas-tube or ‘thyratron’. It is called a silicon ‘controlled-rectifier’. |
| 1965 H. Kahn On Escalation viii. 163 The slower rate of escalation..that is likely to result from a successful controlled-response strategy. 1966 Schwarz & Hadik Strategic Terminology 45 Controlled response, response to a military attack by military action that is deliberately kept within certain definable limits for the purpose of avoiding all-out nuclear war. |
| 1944 Act 7 & 8 Geo. VI c. xxxi §15 The managers or governors of a controlled school shall not be responsible for any of the expenses of maintaining the school. 1960 Where? No. 3, p. 12/2 Controlled school, a voluntary school for which the local education authority is responsible and appoints most of the teachers, but in which the governors or managers have the right to appoint a limited number of teachers who will give special religious instruction for part of the week. |