- One who is at least 100 years old. One who is past his or her tenth decade.
Etymology: Latin centÄnÄrius, of a hundred, from centum, hundred.
- Being at least 100 years old. Beyond one's tenth decade.
- Of or related to a centenarian.
Supplemental Details:Sponsor an extended definition for centenarian for as little as $10 per month. Click here to contact us.