Loschmidt's number
[ loh-shmits ]
/ ˈloʊ ʃmɪts /
noun Chemistry.
the number of molecules in one cubic centimeter of an ideal gas at standard temperature and pressure, equal to 2.687 × 1019.
Compare
Avogadro's number.
Origin of Loschmidt's number
after Joseph
Loschmidt (1821–95), Austrian chemist, who calculated it