discordant couple
n.— «Jim, 31, says he and his wife, June, are “a discordant couple,” meaning that one is infected with the AIDS virus and the other isn’t.» —“Aids Threat To Women Increasing” by Kay Longcope Boston Globe (Mass.) Aug. 23, 1990. (source: Double-Tongued Dictionary)
Further reading
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There was a time when William Shakespeare was just another little seven-year-old in school. Classes in his day were demanding — and all in Latin. A new book argues that this rigorous curriculum actually nurtured the creativity that later flourished...