lock

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lock

 [lok]
1. a place, often airtight, where something is sealed in.
2. a device such as a clamp for holding something firmly in place.
heparin lock see heparin lock.

lock

(lok),
A device for holding or closing.

lock

Vox populi A device that prevents a particular action or activity. See Bloxham air lock, Heparin lock, Job lock, Vapor lock.

lock

(lok)
1. An enclosing, fastening, or securing device.
2. A mechanism that, when moved, permits or obstructs passage.
References in periodicals archive ?
The Bethel School District office and Echo Hollow Pool were also locked down during the incident, which was reported at 10:18 a.
The school was locked down as a precaution because the person threatening suicide was in a house near the school, according to a dispatcher for the Lane County Sheriff's Office.
OAKRIDGE - An Oakridge school was locked down twice on Monday after a student reported seeing a man, possibly armed with a gun, and other students said they saw the man again later in the day.