millimetreihin
Millimetreihin is a Finnish grammatical form of the noun millimetri, meaning millimetres. Specifically, it is the illative plural, used to express direction toward or into the unit in contexts such as measurements or specifications. The corresponding singular illative form is millimetriin, while the partitive plural is millimetrejä.
Millimetre, symbol mm, is a unit of length in the metric system. It equals one thousandth of
In Finnish, many nouns change form to indicate case and number. The illative plural suffix -ihin is
Etymology wise, millimetre is formed from milli- (one thousandth) and metri (metre), a borrowing that reflects