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block signal

noun
1.
a fixed railroad signal governing the movements of trains entering and using a given section of track.
Origin
1880-1885
1880-85
Related forms
block signaling, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for block signal
  • The cars were operating in an automatic block signal system where a red signal required a train to stop.
  • Interference by objects such as vegetation and terrain can block signal reception.
  • The safety of the country demands fewer grade crossings and the extension and perfection of the block signal system.

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Difficulty index for block signal

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Word Value for block

13
16
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