lock-and-block system

noun

Definition of lock-and-block system

British

: a railway block system in which the signals permitting a train to enter a block are locked while a train is in the block and automatically unlocked as it leaves the block

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Dictionary Entries Near lock-and-block system

lockaid gun

lock-and-block system

lock away

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“Lock-and-block system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lock-and-block%20system. Accessed 2 Jul. 2022.

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