Myriameter
Pronunciation : Myr"i*a*me`ter, Myr"i*a*me`tre
Part of Speech : n.
Etymology : [F. myriam?tre. See Myria-, and Meter.]
Definition : Defn: A metric measure of length, containing ten thousand meters. It is equal to 6.2137 miles.
Source : Webster's Unabridged Dictionary, 1913