jiè​zhì

medium

介质 (介質) jiè​zhì
medium noun
a substance through which energy, waves, or force is transmitted

Sound cannot travel through a vacuum because its transmission requires a medium.

storage medium noun
the physical material used for recording and storing data or information

Optical discs and hard drives are common storage media.

Frequency

Movie subtitles
0.180 per million appears in 0% of films
Written text
7.05 per million

Sources

Definitions
CC-CEDICT