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