Meaning of -OSIS in English


ˈōsə̇s noun suffix

( plural -o·ses ˈōˌsēz ; or -o·sis·es )

Etymology: Middle English, from Latin, from Greek -ōsis, from -ō- (medial vowel characteristic of derivatives of certain verbs) + -sis


a. : action : process : condition

hypn osis

b. : abnormal or diseased condition

leuk osis

2. : increase : formation

leukocyt osis

3. : arrangement

pteryl osis


[New Latin, from Latin]

: disease caused by a (specified) fungus

chytridi osis

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.