Micromillimeter | n. [ Micro- + millimeter. ] The millionth part of a meter. The millionth part of a meter is now termed a |
nanometer | (n) a metric unit of length equal to one billionth of a meter, Syn. micromillimeter, nanometre, micromillimetre, nm, millimicron |
Micromillimeter | n. [ Micro- + millimeter. ] The millionth part of a meter. The millionth part of a meter is now termed a |