fluxion noun. ['flʌkʃ(ǝ)n] M16.
[Old & mod. French, or from Latin flux-: see FLUXIBLE, -ION.]
1. = FLUX noun 1. Now rare or obsolete. M16.

2. The action of flowing (out); continuous motion; continual change. L16.
b. = EFFLUVIUM 2. E17-M18.

3. Math. Increase or decrease of a continuously varying quantity; the rate of this. Now chiefly Hist., in method of fluxions, the Newtonian calculus. L17.

■ fluxional adjective (a) Math. of or pertaining to fluxions; (b) resulting from or subject to flux; flowing, variable: M18.

■ fluxionary adjective (now rare) = fluxional M18.

■ fluxionist noun (Math., Hist.) a person who uses (the method of) fluxions M18.

[TahlilGaran] English Dictionary ▲