#initial-load-header-loader { visibility: hidden!important; } #initial-load-content { visibility: visible!important; } .expandable .expandable-control { display: none!important; } .expandable .expandable-content { display: block!important; visibility: visible!important; max-height: none!important; height: auto!important; }

duplex lock

noun

a lock capable of being opened either by a master key or a change key, each operating its own mechanism.

RELATED CONTENT

Locked Up Lingo: 8 Terms That Summarize Prison Slang

Read more in this article about some frequently asked questions and fun facts related to our definitions.

Read more in this article about some frequently asked questions and fun facts related to our definitions.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019