English noun: micromillimeter | |||
1. | micromillimeter (quantity) a metric unit of length equal to one billionth of a meter | ||
Synonyms | micromillimetre, millimicron, nanometer, nanometre, nm | ||
Broader (hypernym) | metric linear unit | ||
Part holonym | A, angstrom, angstrom unit | ||
Part meronym | micrometer, micron | ||