PTOSIS


Meaning of PTOSIS in English

[ 'təʊsɪs ]

■ noun Medicine drooping of the upper eyelid due to paralysis or disease, or as a congenital condition.

Derivatives

ptotic 'təʊtɪk adjective

Origin

C18: from Gk ptōsis , from piptein 'to fall'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.