(Med.) An unnatural or excessive flow of blood or fluid toward any organ; a determination.
5.
A constantly varying indication. "Less to be counted than the fluxions of sun dials."
6.
(Math.)
(a)
The infinitely small increase or decrease of a variable or flowing quantity in a certain infinitely small and constant period of time; the rate of variation of a fluent; an incerement; a differential.
(b)
pl. A method of analysis developed by Newton, and based on the conception of all magnitudes as generated by motion, and involving in their changes the notion of velocity or rate of change. Its results are the same as those of the differential and integral calculus, from which it differs little except in notation and logical method.
... to proclaim the doctrine of the perpetual fluxion of the universe (to reon, to gignomenon—Unrest and Development), the endless changes of matter, and the mutability and perishability of all individual things. This restless, changing flow of things, which never are, but always are becoming, he pronounced to be the ... — Christianity and Greek Philosophy • Benjamin Franklin Cocker
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