A cord-like structure that holds the yolk of an egg in place in the white part, found in bird eggs.
From Greek 'χάλαζα' (chalaza) meaning 'hailstone' or 'hard lump.' The structure was named for its resemblance to a hard particle, though the etymology's connection to hail is now unclear.
That rope-like thing you find in an egg white is called a chalaze, and when you boil eggs, they're the stringy parts—the Greek root 'chalaza' meant hailstone, so someone thought egg parts looked like tiny ice chunks.
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