\begin{definition}[Definition:Imperial/Volume/Gill]
The '''gill''' is an imperial unit of volume.
{{begin-eqn}}
{{eqn | o = 
      | r = 1
      | c = '''gill'''
}}
{{eqn | r = 5
      | c = fluid ounces
}}
{{eqn | r = 0 \cdotp 14206 \, 53125
      | c = litres
}}
{{eqn | r = 142 \cdotp 06531 \, 25
      | c = millilitres
}}
{{end-eqn}}
\end{definition}