micromillimeter Meaning, Definition & Usage

  1. noun a metric unit of length equal to one billionth of a meter
    nanometre; nm; millimicron; micromillimetre; nanometer.

WordNet


Mi`cro*mil"li*me`ter noun
Etymology
Micro- + millimeter.
Definitions
  1. The millionth part of a meter.

Webster 1913