Definition of 上位互換 (じょういごかん)

no-adjective, noun
1.
downward compatible, backward compatible, compatible with input or components intended for lower tier or older systems, versions, etc.
2.
upward compatible, forward compatible, compatible with input or components intended for higher tier or later systems, versions, etc.(incorrect usage)
See also:下位互換
Related Kanji
above, up
rank, grade, throne, crown, about, some
mutually, reciprocally, together
interchange, period, change, convert, replace, renew