The phrase "a functional definition" is correct and usable in written English.
It can be used when describing a definition that is practical and applicable in a specific context or situation.
Example: "In our discussion, we will focus on a functional definition of success that emphasizes measurable outcomes rather than subjective interpretations."
Alternatives: "a practical definition" or "an operational definition".
Scientific or philosophic responses to this problem often propose a functional definition: an organism is dead when its integrative and homeostatic functions are irreversibly lost [ 32].
"That's a functional definition of a cure".
Such a functional definition could prove elastic, and an enterprising blogger would have every reason to assert any available privilege.
Zavala-Araiza, D. et al. Toward a functional definition of methane super-emitters: application to natural gas production sites.
This paper will discuss the issues and application of a functional definition of the NOAEL in toxicology evaluations.
The primary aim of this study was to determine the prevalence of positional obstructive sleep apnea using a functional definition.
A reasonable functional definition would be that a GPG is "a good which it is rational, from the perspective of a group of nations collectively, to produce for universal consumption, and for which it is irrational to exclude an individual nation from consuming, irrespective of whether that nation contributes to its financing" [[ 3], page 9].
"I don't feel I'm particularly qualified to judge exactly what a precise functional definition of genocide is, but it seemed a no-brainer that killing a million people because they were Armenians fit the definition".
The possibility of madmen pushes us away from a simple functional definition of pain.
It was the use of violence to further political goals, which is a pretty functional definition of the term.
However, many experts favour a more functional definition based on patient's functional health status or comorbidities.
