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Meaning of -osis

-osis

Pronunciation: [key]
  1. a suffix occurring in nouns that denote actions, conditions, or states (hypnosis; leukocytosis; osmosis), esp. disorders or abnormal states (chlorosis; neurofibromatosis; tuberculosis). Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.