noun im·mis·sion \(ˈ)i¦mishən\

Definition of immission

  1. 1a archaic :  an act of sending or letting in :  injection, admission, introduction b obsolete :  something introduced

  2. 2 :  commixture 2

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of immission

Latin immission-, immissio, from immissus past participle of immittere to send in (from in- 2in- + mittere to send) + -ion-, -io -ion — more at smite

Seen and Heard

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


a brief usually trivial fact

Get Word of the Day daily email!