An elderly person, especially one over the age of 60.
Let all the genarians pass in review — The procession will last but a minute or two.
Concerning rules or principles as opposed to acts.
This distinguishes his position from that of rule-utilitarians like Brandt, with whom Hare otherwise largely agrees, and makes Hare an actarian in my sense rather than a genarian.
Back-formation from sexagenarian, septuagenarian, octogenarian, and so on.
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