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ignition interlock

noun, Automotive.
1.
interlock (def 10).

interlock

[v. in-ter-lok, in-ter-lok; n. in-ter-lok] /v. ˌɪn tərˈlɒk, ˈɪn tərˌlɒk; n. ˈɪn tərˌlɒk/
verb (used without object)
1.
to fit into each other, as parts of machinery, so that all action is synchronized.
2.
to interweave or interlace, one with another:
The branches of the trees interlock to form a natural archway.
3.
Railroads. (of switches, signals, etc.) to operate together in a prearranged order.
verb (used with object)
4.
to lock one with another.
5.
to fit (parts) together to ensure coordinated action.
6.
Railroads. to arrange (switches, signals, etc.) to effect a predetermined sequence of movement.
noun
7.
the fact or condition of interlocking or of being interlocked.
8.
the existence or an instance of an interlocking directorate.
9.
a device for preventing a mechanism from being set in motion when another mechanism is in such a position that the two operating simultaneously might produce undesirable results.
10.
Also called ignition interlock. a device or system that prevents an automotive engine from starting until the seat belt for any occupied front seat is fastened.
11.
a stretch fabric made with a circular knitting machine having two alternating sets of long and short needles.
12.
Movies. a device for synchronizing the action of a camera and sound recorder.
Origin
1625-1635
1625-35; inter- + lock1
Related forms
interlocker, noun
uninterlocked, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ignition-interlock

interlock

verb (ˌɪntəˈlɒk)
1.
to join or be joined firmly, as by a mutual interconnection of parts
noun (ˈɪntəˌlɒk)
2.
the act of interlocking or the state of being interlocked
3.
a device, esp one operated electromechanically, used in a logic circuit or electrical safety system to prevent an activity being initiated unless preceded by certain events
4.
a closely knitted fabric
adjective (ˈɪntəˌlɒk)
5.
(of fabric) closely knitted
Derived Forms
interlocker, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Value for ignition

9
12
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