pūnaha ngahuru
1. (noun) metric system.
Ko te pūnaha ngahuru: Koia nei ngā waeine e pūtakea mai ana i te tekau. E tino whakamahia ana te pūnaha ngahuru puta noa i te ao. Ko te mita (m) te waeine matua mō te roa, ko te karamu (g) mō te papatipu me te taumaha, ko te rita (l) mō te kītanga (TRP 2010:210). / Metric system: The units of measurement that are based on the number ten. It is in extensive use throughout the world. The metre (m) is the base unit for length, gram (g) for mass and weight, and the litre (l) for capacity (TRP 2010:210).