One who or that which is at least 100 years old.
Aged 100 years or more; extremely old.
Of or relating to centenarians or a centenary celebration.
An extremely old or outdated person.
The mineralized remains of an animal or plant.
Any preserved evidence of ancient life, including shells, imprints, burrows, coprolites, and organically-produced chemicals.
Anything extremely old, extinct, or outdated.
A fossil word.