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safety tube
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English
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Noun
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safety
tube
(
plural
safety tubes
)
(
chemistry
)
A
tube
to prevent
explosion
, or to control
delivery
of
gases
by an automatic
valvular
connection
with the outer air; especially, a bent
funnel
tube with
bulbs
for adding those
reagents
which produce unpleasant
fumes
or violent
effervescence
.
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en:Chemistry