a. rare0. [as if ad. L. *fluctuābilis, f. fluctuāre to FLUCTUATE: see -ABLE.] Capable of fluctuating. (Ogilvie, 1882.)
Hence Fluctuability, the quality of being fluctuable.
a. 1786. Walpole, Lett. to Mann (F. Hall).
1883. in Ogilvie.