American Heritage Dictionary
(1)
Century Dictionary
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
Just be thankful it hasn't got the sound of someone digging a grave like the bloodcurdling 'Tup's Fold' from the duo's debut album 'We Lowered A Microphone Into The Ground'.— The Devil Has The Best Tuna
According to Global Ontario, witnesses recalled a bloodcurdling scream and saw a young woman flee from the home early yesterday.— Top Stories - Google News

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You can expect to see this word about once a year.