hymenogeny

from The Century Dictionary.

• noun The production of membrane as the effect of contact of two liquids, as albumen and fat, when the former gives a coating to the globules of the latter.

from the GNU version of the Collaborative International Dictionary of English.

• noun The production of artificial membranes by contact of two fluids, as albumin and fat, by which the globules of the latter are surrounded by a thin film of the former.