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

-osis

noun suffix

Definition of -osis

plural

-oses

or

-osises

  1. 1 a :  action :  process :  condition <hypnosis> b :  abnormal or diseased condition <leukosis>

  2. 2 :  increase :  formation <leukocytosis>



Origin and Etymology of -osis

New Latin, from Greek -ōsis, from -ō- (stem of causative verbs in -oun) + -sis


Learn More about -osis

  1. Medical Dictionary: Definition of -osis


Seen and Heard

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

WORD OF THE DAY

the lowest point

Get Word of the Day daily email!