What does albumen mean?

Albumen refers to the egg white, which is the clear, viscous substance found surrounding the yolk in eggs. It is primarily composed of water and proteins, particularly ovalbumin, and serves to protect the yolk and provide additional nutrients to the developing embryo. In a broader context, albumen can also refer to any protein that is soluble in water and coagulable by heat, often found in various biological fluids.