In avian biology, the gelatinous, usually milky white, stringy coils of albumen (egg white) that surround and protect the egg yolk, and are visible at either end of the yolk as twisted cords. The chalazae attach to the far ends of the eggshell and form a suspension system for the yolk that allows it to rotate throughout embryonic development. Found on https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter