Hypertext Webster Gateway: "controller"

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Controller \Con*trol"ler\, n.
1. (Elec.) Any electric device for controlling a circuit or
system; specif.:
(a) An electromagnet, excited by the main current, for
throwing a regulator magnet into or out of circuit in
an automatic device for constant current regulation.
(b) A kind of multiple switch for gradually admitting the
current to, or shutting it off from, an electric
motor; as, a car controller for an electric railway
car.

2. (Mach.) A lever controlling the speed of an engine; --
applied esp. to the lever governing a throttle valve, as
of a steam or gasoline engine, esp. on an automobile.

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Controller \Con*trol"ler\, n. [From control, v. t.: cf. F.
contr[^o]leur.]
1. One who, or that which, controls or restraines; one who
has power or authority to regulate or control; one who
governs.

The great controller of our fate Deigned to be man,
and lived in low estate. --Dryden.

2. An officer appointed to keep a counter register of
accounts, or to examine, rectify, or verify accounts.
[More commonly written {controller}.]

3. (Naut.) An iron block, usually bolted to a ship's deck,
for controlling the running out of a chain cable. The
links of the cable tend to drop into hollows in the block,
and thus hold fast until disengaged.

From WordNet (r) 1.7 (wn)

controller
n 1: someone who maintains and audits business accounts [syn: {accountant},
{comptroller}]
2: a person who directs and restrains [syn: {restrainer}]
3: a mechanism that controls the operation of a machine; "the
speed control on his turntable was not working properly";
"I turned the controls over to her" [syn: {control}]


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