Metric unit of capacity (5)

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">metric unit of capacity</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for litre that I've seen before include "less than two pints" , "Measure of liquid volume" , "Nearly two pints" , "It's equal to about 1.75 pints" , "One thousand cubic centimetres" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">metric unit of capacity</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for liter that I've seen before include "unit across the pond" , "American volume" .)