nonagenarian

noun

1. 90多岁的人
   a person who is between 90 and 99 years old

1. They include a nonagenarian war-hero, Vo Nguyen Giap, a dissident monk, Thich Quang Do, and a slew of leading scientists and environmental campaigners.
   其中包括九十多岁的战争英雄VoNguyenGiap，持不同意见的著名僧侣ThichQuangDo，还有诸多著名科学家和环保人士。

noun

1. someone whose age is in the nineties

adj

1. being from 90 to 99 years old
   1. the nonagenarian inhabitants of the nursing home