Obs. rare. [f. SUPER- 2 + L. fluitāre, frequent. of fluĕre to flow + -ANCE.] That which floats on the surface.
Confused by Blount Glossogr. with superfluity.
1646. Sir T. Browne, Pseud. Ep., II. i. 56. Sperma Cœti (which is a bituminous superfluitance on the sea). Ibid., II. v. 92. Out of the cream or superfluitance, the finest dishes … are made.
