JMdict: 2838742

下位互換 【かいごかん】

  1. [adj-no,n] upward compatible; forward compatible; compatible with input or components intended for higher tier or later systems, versions, etc.
  2. [adj-no,n] downward compatible; backward compatible; compatible with input or components intended for lower tier or older systems, versions, etc.
  3. [adj-no,n] providing the same function while being less effective (esp. in games)
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