Meaning of CONTROL in English

I. kən-ˈtrōl verb

( con·trolled ; con·trol·ling )

Etymology: Middle English countrollen, from Anglo-French contrerouler, from contreroule copy of an account, audit, from Medieval Latin contrarotulus, from Latin contra- + Medieval Latin rotulus roll — more at roll

Date: 15th century

transitive verb


a. archaic : to check, test, or verify by evidence or experiments

b. : to incorporate suitable controls in

a controlled experiment


a. : to exercise restraining or directing influence over : regulate

b. : to have power over : rule

c. : to reduce the incidence or severity of especially to innocuous levels

control an insect population

control a disease

intransitive verb

: to incorporate controls in an experiment or study — used with for

control for socioeconomic differences

Synonyms: see conduct

• con·trol·la·bil·i·ty -ˌtrō-lə-ˈbi-lə-tē noun

• con·trol·la·ble -ˈtrō-lə-bəl adjective

• con·trol·ment -ˈtrōl-mənt noun

II. noun

Usage: often attributive

Date: 1590


a. : an act or instance of controlling ; also : power or authority to guide or manage

b. : skill in the use of a tool, instrument, technique, or artistic medium

c. : the regulation of economic activity especially by government directive — usually used in plural

price control s

d. : the ability of a baseball pitcher to control the location of a pitch within the strike zone

2. : restraint , reserve

3. : one that controls: as


(1) : an experiment in which the subjects are treated as in a parallel experiment except for omission of the procedure or agent under test and which is used as a standard of comparison in judging experimental effects — called also control experiment

(2) : one (as an organism, culture, or group) that is part of a control

b. : a device or mechanism used to regulate or guide the operation of a machine, apparatus, or system

c. : an organization that directs a spaceflight

mission control

d. : a personality or spirit believed to actuate the utterances or performances of a spiritualist medium

Synonyms: see power

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.