res ipsa loquitur
Concise Oxford English Dictionary © 2008 Oxford University Press:
res ipsa loquitur /ˌreɪz ˌɪpsə ˈlɒkwɪtə/
▶noun Law the principle that the mere occurrence of some types of accident is sufficient to imply negligence.
– origin L., lit. ‘the matter speaks for itself’.
'res ipsa loquitur' also found in these Oxford entries:

