English Explanatory Dictionary

ptosis

English dictionary entry

Meanings

noun
  1. The prolapse of a bodily organ, especially drooping of the eyelid or the breasts.

Pronunciation

/ˈtəʊ.sɪs/ LL-Q1860 (eng)-Vealhurl-ptosis.wav /ˈtoʊ.sɪs/

Word forms

ptosis ptoses

Etymology

From Ancient Greek πτῶσις (ptôsis, “falling, fall”), from πίπτω (píptō, “to fall down”) + -σις (-sis, nominal suffix). First used in 1710.

Related words

ptotic phthisis

Derived words

apoptosis blepharophimosis-ptosis-intellectual disability syndrome blepharoptosis cladoptosis enteroptosis ferroptosis gastroptosis glossoptosis hepatoptosis mastoptosis nephroptosis onychoptosis pseudoptosis pyroptosis splanchnoptosis visceroptosis
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