(s′fəl) noun
A low whispering or blowing sound or murmur heard on auscultation: the respiratory souffle. [<F <souffler blow]

(s·flā′) adjective
Made light and frothy, and fixed in that condition by heat: also souf·fléed′ (-flād′).
—noun A light, baked dish made fluffy with beaten egg whites combined with the yolks, and often with cheese, mushrooms, or other ingredients. [<F, orig. pp. of souffler blow <L sufflare <sub- under + flare blow]