媒介 méijiè intermediary
intermediary; vehicle; vector; medium; media
How to remember 媒介: 媒 go-between + 介 between = intermediary.
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How it is used
- 'Medium, intermediary, vector' - 传播媒介 (chuánbō méijiè) a medium of transmission; a mosquito can be a disease 媒介.
- Abstract/technical: the thing through which something else passes or spreads (information, disease, exchange).
- Contrast 媒体 (méitǐ, the press/media outlets): 媒介 is the channel/carrier in the abstract.