millimetre
- n a metric unit of length equal to one thousandth of a meter
- The crane picked the steel-encased glass up from the freight car millimetre by millimetre.
- How was any portion of the course measured to a fraction of a millimetre over a distance of a mile and how was the position of the boat determined at two measured points to .
- The contests are governed by only two rules: 1) contestants must not have professional assistance; 2) they must not use 35 millimetre film and reduce it to the 8 or 16 .