/dɛθ reɪt/ – noun
Definition: Tỷ lệ tử vong.
A more thorough explanation: the number of deaths within a certain area, or other category, for every 100 or 1000 in that certain population during a particular year
Example: Over the study period, the overall death rate for patients undergoing emergency surgery fell from 16 per cent to 10 per cent.