ptosis

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

• (Received Pronunciation) IPA^(key): /ˈtəʊ.sɪs/
• (General American) IPA^(key): /ˈtoʊ.sɪs/
• Rhymes: -əʊsɪs

ptosis (countable and uncountable, plural ptoses)

1. (medicine) The prolapse of a bodily organ, especially drooping of the eyelid or the breasts.
   • 1970, JG Ballard, The Atrocity Exhibition:

     There were many other factors to be taken into account: Miss West’s age, the type of enlargement, whether the condition was one of pure hypertrophy, the degree of ptosis present, the actual scale of enlargement and, finally, the presence of any pathology in the breast tissue itself.

• posits

• IPA^(key): /ˈtosis/ [ˈt̪o.sis]
• Rhymes: -osis
• Syllabification: pto‧sis

ptosis f (plural ptosis)

1. (medicine) ptosis

• “ptosis”, in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014