Zérusra

Zérusra is a Hungarian linguistic and technical term used to describe the act of setting a measuring instrument to zero. In practice, it appears in phrases such as zérusra állítani, meaning to calibrate or adjust a device so that its baseline reading is zero when no measurable quantity is present. The form zérusra is derived from zérus (zero) with the directional suffix -ra, forming a fixed collocation common in technical contexts.

Etymology and usage note: The term combines the concept of zero with a directive suffix, indicating the intended state of the instrument after the action. It is most frequently encountered with devices that provide numerical readings, such as balances, scales, calipers, tachometers, and instrument dials. In many laboratories, workshops, and shooting sports settings, operators regularly perform zérusra állítás to ensure accurate measurements or sight alignment.

Contexts and examples: On a laboratory balance, technicians zérusra állítják a mérleget before weighing a sample. A rifle scope may require zérusra állítani a retikálumot at a chosen distance. In weighing operations, zérusra állítás often accompanies tare procedures to exclude container weight from measurements. The related term nullázás is broader and may apply to resetting electronic counters or data logs.

See also: Tara (tare) and nullázás. Zérusra is primarily a technical phrase, used to describe aligning readings to a zero baseline across measurement and calibration tasks.