Definition of headblock
: a block supporting the head of something: such as
a
: a part of a sawmill carriage that supports the log
b
: a block of wood between the fifth wheel and the forward spring of a carriage or wagon
c
: one of a set of extra-long railroad ties used for supporting the operating mechanism of a point rail
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“Headblock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/headblock. Accessed 27 Feb. 2021.
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Time Traveler for headblock
The first known use of headblock was in 1811
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