millimetre
noun [ C ] UK (US millimeter) uk/ˈmɪl.ɪˌmiː.tər/ us/ˈmɪl.əˌmiː.t̬ɚ/ (written abbreviation mm)
B1 毫米
a unit of length that is equal to 0.001 metres
- More examples
- The plastic is 2 millimetres thick.
- They can measure the plant growth in millimetres.
- We had to move the stone a few millimetres to the left.