The Collaborative International Dictionary
Myrialitre
Myrialiter \Myr"i*a*li`ter\, Myrialitre \Myr"i*a*li`tre\, n. [F. myrialitre. See Myria-, and Liter.] A metric measure of capacity, containing ten thousand liters. It is equal to 2641.7 wine gallons.
Wiktionary
myrialitre
n. (context rare English) A unit of volume of ten thousand litres.