Douglas Harper's Etymology Dictionary
Usage examples of "blood-curdling".
I settled the shotgun-feller's hash with a box of canned beef, and then I got hold of a double-bitted axe, and the embattled citizens of Cougar Paw quit the field with blood-curdling howls of fear—them which was able to quit and howl.
Often more than one noisy, blood-curdling fight was in progress at the same moment.
Close at hand, now, was a chance for a blood-curdling Alpine adventure.