torsade de pointes
Concise Oxford English Dictionary © 2008 Oxford University Press:
torsade de pointes /tɔːˌsɑːd də ˈpwãt/
▶noun Medicine a form of tachycardia in which the heart's electrical activity varies cyclically.
– origin 1960s: Fr., lit. ‘twist of spikes’ (with ref. to the characteristic electrocardiogram produced).
'torsade de pointes' also found in these Oxford entries:

