interlock
English
Etymology
inter- + lock
Verb
interlock (third-person singular simple present interlocks, present participle interlocking, simple past and past participle interlocked)
- (transitive, intransitive) To fit or clasp together securely.
- To interlace.
Noun
interlock (plural interlocks)
- A safety device that prevents activation in unsafe conditions.
- The demonstrator couldn't figure out why the machine wouldn't work, until he remembered that there was an interlock so it wouldn't operate with the cover open.