An Etymological Dictionary of Astronomy and Astrophysics

1. The design and use of scientific instruments for detection, measurement, control, computation, and so on.
   

2. The ensemble of instruments contained in a given machine or system.

Etymology (EN): From → instrument + -ation a combination of -ate and -ion, used to form verbal nouns.

Etymology (PE): Sâzâlgari, noun from sâzâlgar, → instrumentalist. Sâzâlgân, with plurality suffix -gân.