A person who has hemophilia, a genetic disorder where blood doesn't clot properly, causing prolonged bleeding from even minor injuries.
From Greek 'haima' (blood) + 'philos' (loving), a misdirection in the original naming—these patients don't 'love' blood; the suffix was borrowed from biology to indicate a dependent relationship with blood disorders.
The term 'haemophile' originally meant 'blood-lover' in its word formation, but it's actually ironic—hemophiliacs have exactly the opposite relationship with blood (they can't control it), and the naming shows how early medicine sometimes had backward logic in terminology.
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