millimeetritest

Millimeetritest is the Estonian elative plural form of the noun millimeeter and literally means "from the millimetres" or "out of the millimetres." Grammatically, it is built from the base word millimeeter (millimetre) with the plural elative ending -test, which marks origin, source or point of departure in spatial or abstract contexts.

The base unit millimeeter (symbol mm) is a metric unit of length equal to one thousandth of a metre (0.001 m). It is commonly used for small distances and dimensions in engineering, manufacturing, machining, printing, optics and medical measurements. One millimetre equals 0.1 centimetres, 1,000 micrometres, or about 0.03937 inches.

In Estonian usage, millimeetritest appears in phrases that indicate movement or measurement starting from or derived from a set of millimetre values. Example: "Mõõtmised võeti millimeetritest ja teisendati sentimeetriteks," meaning "Measurements were taken from the millimetre values and converted into centimetres." The form can also appear in comparative or descriptive contexts where data are expressed as originating in millimetre units.

Etymologically, millimeeter is a compound formed from the Latin-derived prefix milli- (one thousandth) and the Greek/Latin root meter (measure).