akinesia
Concise Oxford English Dictionary © 2008 Oxford University Press:
akinesia /ˌeɪkɪˈniːsɪə, a-/
▶noun Medicine loss or impairment of the power of voluntary movement.
– derivatives
akinetic adjective.
akinetic adjective.
– origin C19: from Gk akinēsia ‘quiescence’.
'akinesia' also found in these Oxford entries:

