chorea
Concise Oxford English Dictionary © 2008 Oxford University Press:
chorea /kɒˈrɪə/
▶noun Medicine a neurological disorder characterized by jerky involuntary movements affecting especially the shoulders, hips, and face.
– origin C17: via L. from Gk khoreia ‘dancing in unison’, from khoros ‘chorus’.
'chorea' also found in these Oxford entries:

