micromort

/ˈmaɪkɹəˌmɔ(ɹ)t/

Etymology

From micro- (“one millionth”) + mort (“death”).

noun

  1. A unit of risk equivalent to a one-in-a-million probability of death.“This is described as 10 micromorts per operation, and we can compare this figure with other average risks, such as skydiving (also 10 micromorts), or riding a motorcycle in the UK (yoou^([sic]) have to go around 60 miles to rack up 10 micromorts). The micromort is also roughly the average acute risk we face each day simply by being alive.”