#albumen

• Albumen — A nutritive organic substance (endosperm) surrounding the embryo in the seed of certain higher plants; the egg white of a bird or reptile, considered as a primary protein-rich nutrient medium for embryonic development.
• Egg white — A fluid, viscous, transparent organic substance rich in proteins (especially ovalbumin) that surrounds the yolk of a bird or reptile egg. Upon thermal treatment or mechanical whipping, it becomes opaque, white, and solid, serving an essential biological role in protecting and nourishing the embryo, as well as a major structural use in culinary arts and confectionery.