mensa

noun men·sa \ˈmen(t)sə\

Definition of mensa

plural

mensas

\-səz\ or

mensae

\in sense 1 -n(ˌ)sā, in sense 2 -n(ˌ)sē, -nˌsī sometimes -n(ˌ)sā\
  1. 1 Roman Catholicism :  the top of the altar; especially :  the top or central slab upon which the eucharistic elements are placed

  2. 2 [New Latin, from Latin] :  the grinding surface of a tooth

There's more!

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!
Already a subscriber? Log in.

Origin and Etymology of mensa

Medieval Latin, from Latin, table, from Old Latin, flat cake offered to the gods, perhaps from feminine of mensus, past participle of metiri to measure


Mensa

play
noun Men·sa \ˈmen-sə\

Definition of Mensa

astronomy

  1. :  a dim southern constellation that is visible near the south celestial pole between the constellations of Hydrus and Chamaeleon and that is held to be a representation of Table Mountain in South Africa Table Mountain is a South African icon and the only natural site on the planet to have a constellation of stars named after it — Mensa, meaning “the table.” — Asia Pulse, 14 Nov. 2011 Mensa is one of the faintest constellations in the sky, with no stars brighter than magnitude 5.0. — Carole Stott and Giles Sparrow, Starfinder, 2010

There's more!

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!
Already a subscriber? Log in.

First Known Use of mensa

1847


Seen and Heard

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

sad or melancholy

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
  • Which is a synonym of garner?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Bee Cubed

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

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!