Name for the expression $f''/f'$ that *doesn't* mention risk aversion

Question

$-f''(x)/f'(x)$ is known to economists as the Arrow Pratt measure of absolute risk aversion. We want to use it in a paper to capture a scale invariant notion of concavity while specifcally avoiding any term that suggests we are talking about risk. There is an interesting discussion of this issue in this thread but sadly it doesn't answer my particular question about terminology