Definitions

1. noun

A device or instrument for measuring the volume of liquid in a pipe or tube by means of a float or other indicator.

“The plumber used a pipper to check the water level in the pipes.”

2. noun

A person who pipes, especially in the context of pipe smoking or playing a pipe instrument.

“The pipper sat on the couch, puffing on his pipe and playing a soothing melody.”

3. verb

To fill (a pipe or tube) with a fluid, especially by forcing it through by pressure.

“The engineer pippered the pipeline with water to test its capacity.”