I. ˌnänəjəˈnerēən, ˌnōn-, -na(a)r-, -nār- noun
( -s )
Etymology: Latin nonagenari us containing or consisting of ninety (from nonageni ninety each — from nonaginta ninety — + -arius -ary) + English -an, n. suffix
: a person who is 90 or more and less than 100 years old
II. | ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷ adjective
: 90 or more and less than 100 years old