On Sunday, America’s oldest living person, Mary Christian, died at the age of 113. It’s a pretty amazing story, but the reason I’m linking it up is the last paragraph:

The oldest living American is now Elana Slough, 113, of New Jersey, who was born 26 days after Christian, according to Stephen Coles, an instructor of gerontology at the UCLA School of Medicine who is part of the group that tracks the ultra-old.

Since when has “ultra-old” been the way to refer to someone very old? Is that a normal term that gerontologists use? At what point are you no longer just old, but “ultra-old?”