probefluid
nounUK /ˈprəʊbˌfluːɪd/
US /ˈproʊbˌfluːɪd/
A special liquid used with a tool to check or test something.
The scientist used probefluid to test the tiny sample.
OTHER MEANINGS
2. A liquid used to clean or lubricate a probe instrument.
He wiped the probe with probefluid before use.
3. A fluid that carries signals in a measuring device.
The probefluid helped the machine read the pressure.
4. Any liquid used in a scientific probe experiment.
The lab ordered more probefluid for the experiment.