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sounding rod
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English
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Noun
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sounding
rod
(
plural
sounding rods
)
A
rod
or
piece
of
iron
let down
in a
groove
by a
pump
,
used
to
ascertain
the
depth
of
water
in a
ship
's
hold
.
A
probe
used in
urethral sounding
.
A
sex toy
consisting of a
metal
or
plastic
rod
, generally with a
ball
at the
end
, which is
inserted
into the
urethra
.