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block signal
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English
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Noun
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block
signal
(
plural
block signals
)
(
railways
)
One of the
danger
signals
or
safety
signals which guide the
movement
of
trains
in a
block system
, often
coupled
with a
switch
so that opening or closing the switch also operates the signal.
Anagrams
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ballocksing
Categories
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English lemmas
English nouns
English countable nouns
English multiword terms