Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

octogenarian

play
noun oc·to·ge·nar·i·an \ˌäk-tə-jə-ˈner-ē-ən\

Simple Definition of octogenarian

  • : a person who is between 80 and 89 years old

Full Definition of octogenarian

  1. :  a person whose age is in the eighties

octogenarian adjective

Origin of octogenarian

Latin octogenarius containing eighty, from octogeni eighty each, from octoginta eighty, from octo eight + -ginta (akin to viginti twenty) — more at vigesimal


First Known Use: 1815


Medical Dictionary

octogenarian

play
noun oc·to·ge·nar·i·an \ˌäk-tə-jə-ˈner-ē-ən\

Medical Definition of octogenarian

  1. :  a person whose age is in the eighties

  2. octogenarian adjective




Learn More about octogenarian


Seen and Heard

What made you want to look up octogenarian? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

duvet spindrift pince-nez kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ