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rackarock
Language
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Edit
English
edit
Etymology
edit
rack
+
a
+
rock
; see
rack
(
“
to stretch or strain
”
)
.
Noun
edit
rackarock
(
uncountable
)
An
explosive
consisting of
potassium
chlorate
and
mononitrobenzene
.
Categories
:
English compound terms
English lemmas
English nouns
English uncountable nouns