ptosis

== English == === Etymology === From Ancient Greek πτῶσις (ptôsis, “falling, fall”), from πίπτω (píptō, “to fall down”) +‎ -σις (-sis, nominal suffix). First used in 1710. === Pronunciation === (Received Pronunciation) IPA(key): /ˈtəʊ.sɪs/ (General American) IPA(key): /ˈtoʊ.sɪs/ Rhymes: -əʊsɪs === Noun === ptosis (countable and uncountable, plural ptoses) (medicine) The prolapse of a bodily organ, especially drooping of the eyelid or the breasts. ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== ==== See also ==== === Anagrams === posits == Spanish == === Pronunciation === IPA(key): /ˈtosis/ [ˈt̪o.sis] Rhymes: -osis Syllabification: pto‧sis IPA: [ˈptosis] === Noun === ptosis f (plural ptosis) (medicine) ptosis === Further reading === “ptosis”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025